SUBJECT INDEXT H L JO U R N A L O F INDUSTRIAL AND E N G IN E E R IN G CHLM15TRY

VOL. 1, 1 90 9

A B S T R A C T S from S even th Intern ation al Congress o f A ppliedC hem istry ............................................... 491

A ccum ulation of nitrogen, carbon and hum us in a prairie soil, a re­m arkable. F . J . A lw ay and C. E . V a il................................................ 74

A ccurate and rapid m easuring device, an. Isaac F . H arris and S.D . B eard ............................................ 603

A ceta te o f lim e, th e analysis o f com m ercial. T h os. S. G la d d in g .. 250A conite. Frank O. T a y lo r ................................................................................... 549A ccuracy in sam pling coal. E . G. B a ile y .................................................... 161A cid s in w ines, th e determ ination o f to ta l, fixed and vola tile .

Ju lius H o r tv e t .................................................................... . ............................ 31A dd resses..................................................................102, 194, 307, 464, 775, 806A du lteran ts, turpentine and its . Arthur E . P a u l................................ 27A ir-saltpetre, the u tiliza tion o f atm ospheric nitrogen, particularly

for th e m anufacture of. D r. A. B ernth sen ........................................ 464A lcohol from liquids low in alcohol, loss of. W in. H . B en tle y . . . . 481A lcohol in flavoring extracts, th e determ ination o f essen tia l oil and.

Ju liu s H o rtv et and R odn ey M ott W est ................................................ 84A lgae o f the P acific C oast, on the chem istry o f certain. D avid M.

B a lc h ..................................................................................................................... 777A lm ond flavoring extract, th e determ ination o f b en zaldehyde in.

W . D en is and P . B . D u n b ar....................................................................... 256A lum ina in p hosp h ate rocks, th e estim ation o f iron ox id e and.

Thos. S . G ladding............................................................................................ 249A m erican A ssociation for th e A dvancem ent o f Science, 60th m eet­

ing , 57; convocation w eek m eeting, 130; A m erican C hem ical S ociety , B altim ore m eeting, 53; 39tli general m eeting, 127; Ind ianapolis jo in t m eeting, 319; D etro it m eeting, 485, 610; B oston m eeting, 818; A m erican E lectrochem ical S ocie ty , 14th general m eetin g, 54 , 384; A m erican In stitu te o f Chem ical Engineers, 131, 233 , 489, 622, 816; Am erican Leather Chem­ists A ssociation, 5 th annual m eeting. 57; A m erican In stitu te Mining E ngineers, 95th general m eeting, 57; A m erican S ocietyfor T esting M ateria ls................................................................... 320 , 385, 817

A m erican handy-book o f th e brewing, m alting and auxiliary trades.R obert W ahl and Max H enius (B o o k ).................................................. 221

A m erican In s titu te o f C hem istry, an. G eorge A uchy (E d .) ............. 64A m erican m olasses feeds. J . E . H a lligan .................................................... 441A m m onia gas and apparati for testin g it, p urity o f com m ercial

liquefied. F . W . Frerichs....................................................... 362A m orphous calcium phosphide, the com m ercial m anufacture of.

Chas. E . M unroe............................................................................................... 178A m oun t o f in ert vo la tile m atter in th e m ineral con stitu en ts o f coal,

th e . W . B rinsm aid ....................................................................................... 65A nalyses and friction tes ts o f lubricating greases. H orace W .

G ille tt.................................................................................................................... 351A nalysis, o f com m ercial aceta te o f lim e, 250; of fats, soaps and

glycerine, com m ittee on, 44; iron ores, m ethods o f U . S. S teel Corporation for com m ercial sam pling and, 107; o f lead arsenate for w ater-soluble im purities, 659; phosphate rock, report o f com m ittee on , 41; turpentine, 27; w ines, 31; coal, 65. 161, 518,636, 673, 689; cotton seed products. 76; su lphites in foods, 81; insoluble phosphoric acid. 119; benzoic acid in foods, 190, 538; nitrates in so il so lu tions. 188; m oisture in butter, 205, 315; fa t in condensed m ilk, 208; arsenious ox id e in Paris green, 208; iron and alum inium ox id es in phosphate rock, 249, 477; m oisture in v iscou s solids, 252; proteins in m ilk, 253; b en za l­d eh yde in flavoring extract. 256; acetan ilid in hydrogen per­oxid e, 262; potassium in soils, 302; potash in fertilizers, 304,409; d u st in gases, 312; copper in sugar analysis, 313; sew age,328; liquid am m onia, 362; m assecu ites and m olasses, 370; vanadium , 455; barium and sulphur in fluorspar, 462; zinc as sulphate, 476; van illa ex tracts, 478; coke, 5 IS; B ab b itt m eta l, 519; acon ite, 549; sugar, 567; fa t in cheese. 604; phos­phorus in flesh, 675; pyridine in aqua am m onia, 698; casein inm ilk , 723, 768; a sp h a lt.................................................................................. 751

A n alyzed sam ples, th e Bureau o f S tandards. W . F . H ille b r a n d .. 41A pp aratu s in chem ical engineering, th e developm ent o f in ten sely

w orking. Francis I . D u P on t (E d .) ....................................................... 327

A pp aratu s for testin g liquefied am m onia gas. F . W . F r e r ic h s .. 223 A nhydrous chlorin from m oist d ilu te gases and its in d u stria l ap­

p lication in chlorin detinn ing, th e m an u fa c tu re of. E lm er A .S perry.......................................................................... 511

A nthracite producer practice, n otes on . G eo. C. S to n e ................. 11A nti-pu trescen t effects of copper. A lfred Springer................................ 676A qu a am m onia, estim ation o f pyrid ine in . A. C. H o u g h to n 698A rsen ious ox id e in Paris green and other in secticides, a quick

m eth od for th e determ ination of. C. C. H ed ges............................. 208A sp h alt analysis, th e preparation o f Gooch crucibles for. B . Mears. 477A sp h altic m aterial, chem ical exam ination of. S . W . Parr, Brainerd

Mears and D . L. W eath erh ead ......................................... 751A ssociation o f Official A gricultural C hem ists, 25th annual con ven ­

tio n .............................................................................................. 55 , 133, 489, 744A ssociation o f s ta te and national food and dairy dep artm en ts. . . . 742 A tm ospheric nitrogen, particularly for the m anufacture o f air-

sa ltpetre, th e u tiliza tion of. D r. A. B ern th sen .................................. 464A tm ospheric nitrogen, the ox id ation of. D r. O tto S ch neid er 120A ttitu d e of technical in stitu tion s to post-gradu ate stu d y , th e . W m .

M cM urtrie............................................................................................................ 196A vailab le phosphates, soil ac id ity in it s relation to lack of (second

paper). C. W . S tod d ard ............................................................................. 69

B A B B IT T m etal, rapid analysis of. P ercy H . W alker and II. A.W h itm an .............................................................................................................. 519

B acterial treatm ent o f sew age, m eth od s and d evices for. W'm.M ayo V enable (B o o k ).................................................................................... 51

B ad isch e anilin- and soda-fabrik, the products o f th e (Q uot.) . . . . 121B ad isch e book, the. T h e B adische C om pan y............................................ 126B ag house and its recent applications, the. W . C. E b a u g h 6 8 6B ak elitc . the synth esis , con stitu tion and uses of. L . H . B aek e­

la n d ...................................... 149Barium and sulphur in fluorspar. H enry G- M a r tin . ...................... 462B ed cu tu ng dfT kolloide fur d ie technik . Prof. K u rt A rndt (B ook ). 383 B eef anim als on different p lan es of nutrition , com position o f th e fa t

of. C. R . M oulton and P . F . T row bridge........................................... 761B en zaldehyd e in alm ond flavoring extract, the determ ination of.

W . D enis and P. B . D u n b ar............................................................ 2 56B en zoic acid in tom ato catsup and other food products, determ ina­

tion of. R odn ey M ott W e s t . ............................................................... 190Betriebs-C hem ikcr. der. Dr. R ichard D icrbach (B o o k ).................... 50B itu m en s, a useful p ycnom etcr for determ ining th e specific grav ity

of semi solid . Prevost H u b b ard ............................................................. 475B itu m in ou s binders, controlling th e con sisten cy of. C. N . Forrest. 378Boiler w aters, n itrates in . Geo. S . Jam ieson .............................................. 787B om b calorim eter, a new . Charles J. E m erson ........................................ 17B o o k R e v i e w s a n d N o t i c e s ........................................................................... *

......................................................1 2 3 , 2 2 0 , 2 7 1 . 3 1 8 , 3 8 0 , 4 8 1 . 6 8 0 , 7 4 2 , 7 7 6 , 8 1 4B o o k R e v i e w s a n d N o t i c e s : M etallurgy (W ysor), 4 9 ; E lectro-

M etallurgy (K ershaw ). 4 9 ; D er Betriebs-C hem iker (D ierbach),5 0 ; T he C hem ical A nalysis o f Iron (B lair). 5 0 ; L aboratory G uide of Industria l C hem istry (R ogers), 5 0 ; S oils and Fertilizers (Snyder), 5 0 ; M anufacture o f Lubricants, Shoe P olishes and L eather D ressings (Brunner), 5 0 ; L iquid and G aseous Fuels (L ew is), 5 1 ; Power H an d b ooks (Collins), 5 1 ; M ethods and D evices for B acterial T reatm ent o f Sew age (V enable), 5 1 ; Principles and Practice o f A gricultural A n alysis (W iley), 1 2 3 ; M echanical A ppliances o f th e C hem ical and M etallurgical I n ­dustries (N agel), 1 2 4 ; C hem ical R eagents: Their P u rity and T ests (Merck), 1 2 4 ; M odern Pow er G as Producer (A llen), 1 2 4 ; C hem iker-K alender, 1 9 0 9 (B iederm ann), 1 2 4 ; Laboratory' E xp erim en ts in M etallurgy (Sauveur and B oy lston ). 1 2 4 ; L aboratory N otes on Industria l W ater A nalysis (R ichards),1 2 4 ; D ie Fabrikation von Leim und G elatine (Thiele), 1 2 5 ;L es d ensities des so lu tions su cries k. D ifferentes tem peratures (S idersky), 1 2 5 ; E ffects o f Form aldehyde u pon D igestion and H ealth (Bureau o f C hem .), 1 2 5 ; A S hort P h arm aceutic C hem ­istry , Inorganic and Organic (S tanislaus). 2 2 0 ; C hapters o n

826 T H E J O U R N A L OF IN D U S T R I A L A N D EN GIN EER ING C H E M IS T R Y . Dec., 1909

Paperm aking (B ead le), 220; M ethods o f T ex tile C hem istry (D ann erth), 221; T onindustrie-K alender, 1909, 221; A m erican H an d y-B ook of Brewing, M alting and A uxiliary Trades (W ahl and H en iu s), 221; H andbook for C am ent W orks Chem ists (G atehouse), 222; F actory G lazes for C eram ic Engineers (W est), 222; W ood Products, D istilla tes and E xtrac ts (N oyes), 271; R apid M ethods for Chem ical A nalysis o f S pecia l S teels, S teel-m aking, A lloys and G raphite (Johnson), 271; Short H andbook o f Oil A nalysis (G ill), 272; H ea t E nergy and Fuels (Juptner), 272; P o st’s Chem ish-Technische A nalyse (N eu ­m ann), 318; C hem istry o f E ssentia l O ils and A rtificial Per­fu m es (Perry), 318; H andbook ten D ien ste van de Suikcrriet- Cultur cn de R ietsu iker-F abricage o f Ja v a (Sugar E xp . S ta., J ava ), 380; M ethoden van Onderzoek der de Jav a R ietsuiker- Ind u strie V oorkom ende Producten, A fvalproducten, Brand- stoffen , M eststoffen, Chem icalien, W ater, Sm eerolien, E nz (T ervooren), 380; D e dicrlijke V ijanden van h et Suikerriet en h u n n e Parasieten (van D even ter), 380; D e Fabricatic van Suiker u it Suikerriet op Ja v a (Geerligs), 3 8 0 ' D ie R affination des Zuckers (Gredinger), 381; Sugar, a H andbook for P lanters and R efiners (N ew lands), 381; Laboratory M anual of D yeing and T ex tile C hem istry (M atthew s), 382; D ie Theorie der Far- bevorgangc (Zacharias), 382; B edeutung der K olloide fur die T echnik (A rndt), 383; P o st’s C hem isch-Technische A nalyse (N eum ann), 383; Sprcchsaal K alender for th e Ceramic, Glass and A llied Ind u stries (K oerner), 383; T estin g and Properties o f Sand L im e Bricks (B urchartz), 383; Bull. N o. 9, III. St. G eol. Sur. P aving Brick and P aving Brick C lays of Illinois, 383; Spanish T ranslation o f the Pharm acopoeia o f th e U . S. of Am erica, 383; Portland Cem ent In d u stry from a Financial Stand p oin t (E ck el), 384; Jahrbuch des V ereins der Spiritus- Fabrikauten in D eutschland , 4 8 1; T ables o f Properties of Over 1500 Common Inorganic Substances (Segerblom ), 482; Introdu ction to th e C hem istry and P h ysics o f B u ild ing M a­terials (M unby), 482; Practical T esting o f Gas and Gas M eters (S tone), 482; Sm okeless C om bustion o f Coal in Boiler P lan ts (R andall and W eeks), 483; Lead and Zinc P igm ents (H o lley ), 742; M ineral C ontent o f Illinois W aters, B ull. N o. 4 , 111. S t. W ater Survey, 742; M etallography (G ucrtler), 776; R einforced Concrete in Europe (C olby), 814; Laboratory N otes on Iron and S teel A nalysis (M acFarlane), 814; A lloys and Their In ­dustrial A pplication (L aw ), 815; Tanners’ and C hem ists’ H andbook (L ev i), 815; Chemical Conversion T ables for U se in the A nalysis of Commercial Fertilizers, C ottonseed, Iron and Food P roducts (B a ttle and G ascoyne), 815; Transactions o f th e A m erican In stitu te of Chem ical Engineers. 815; P rac­tica l P o ints for Practical Brewers (W yatt and Sch lich tin g ), 815; Prevention o f Industrial A ccidents (Law and N ew ell),815; B riquetting T ests (W righ t) .............................................. 815

B rasses and bronzes, determ ination o f iron in. I . M. B regow skyand L . W . S prin g............................................................................................. 1 8 7

B ronzes, determ ination o f iron in brasses and. I . M. B regow skyand L. M. S pr in g ............................................................................................. 1 8 7

B u lletin o f B ureau o f Standards. F . A . W olff (B o o k )...................... 125B ureau o f C hem istry. E ffects of Form aldehyde upon D igestion

and H ealth (B o o k ).......................................................................................... 1 2 5B ureau o f S tandards analyzed sam ples, the. W . F . H illebrand,

............................................................................................... 41, 261 . 481B urning p oin ts in o il m ixtures., a com parison o f th e calcu lated

and determ ined v iscosity num bers (Engler) and flashing and.H . C. Sherm an, T . T . G ray and H . A. H am m ersch lag ................. 13

B u tter, as show n b y different m ethods o f sam pling, variation Tofm oisture con ten t in. F loyd W . R ob ison .....................................? . . 3 1 5

C A L C IU M phosphide, th e com m ercial m anufacture of am orphous.Chas. E . M u n roc. ........................................................................................ 178

C alorim eter, a new b om b. Chas. J. E m erson ............................................ 17C alorim eters, a series o f parallel determ inations w ith th e M ahler

and Parr. S . W . Parr and W . F. W h eeler............................................673Calorim eter standardization . E- G. B a iley (E d .) .......................................328C arbon and huraus in a prairie soil, a rem arbakle accum ulation o f

n itrogen. F. J . A lw ay and C. E . V a il.................................................. 74C arbon bisu lphide on benzol, determ ination of. John M. W e is s . . 604Carbon electrodes, the m anufacture of. G . A . R o u sh ..............................286Carbon in steel, a n ickel crucible for th e determ ination of. H enry

E . K . R u p p e l.................................................................................................. 184C arter process o f w hite lead m anufacture, the. J. S. S ta u d t. . . . 758

Casein in m ilk, a rap id m eth od o f determ ining th e percen tage .ofT . Brailsford R obertson, 723; a vo lu m etr ic m ethod for th e de­term ination of. Lucius L . V an S lyk e and A lfred W . B os-w o rth ...................................................................................................................... 768

C ata ly tic reduction o f fa ts and oils. J. B ishop T in gle ( Q u o t .) . 47Catawba grape ju ices, w ith som e n otes on the d eterm ination o f

to ta l acid, com position o f scuppernong, Concord and. H . C.G ore....................................................... 436

C em ent, free lim e in Portland. A lfred H . W h ite ..................................... 5Change in th e com position o f unground cereals during storage.

Sherm an L ea v itt and J . A . LeC lerc........................................................ 299C hanges o f crude p etroleum effected b y diffusion through clay , the.

D avid T . D a y and J. E llio tt G ilp in ......................................................... 449C hanges in th e com position o f the skeleton o f b eef an im als. P . F.

Trow bridge and F. W . W ood m an ............................................................ 725C hapters on Paper M aking. C layton B ead le (B o o k ) ............................220C heese, b y th e B ab cock test, determ ination o f fa t in . J . I . Sam m is. 604 Chem ical A nalysis o f Iron, T he. D r. A ndrew A lexander B lair

(B o o k ).................................................................................................................... 50Chem ical engineer, th e road problem and the. Clifford R ichard­

son (E d .) .................................................. 63Chem ical exam ination o f asph altic m aterial, the. S . W . Parr,

Brainerd Mears and D . L . W eath erh ead .............................................. 751C hem ical R eagents: Their P u rity and T ests. E . Merck (B o o k ) .. 124 C hem ically pure chem icals, som e in terestin g p o in ts in th e m anufac­

ture of. J. T . B ak er ......................................................................................... 464C hem ical S ocie ties in A m erica. W . D . R ichardson (E d .) .................. 233C hem iker-K alender, 1909. D r. R udolph B iederm ann ( B o o k ) . . . . 124C hem ist and the public, th e (E d .) .............................. 506C hem istry, an A m erican in stitu te of. Geo. A u ch y (E d .) ................. 64C hem istry and p hysics o f jelly-m ak in g, contribution on the. N .

E . G o ld tliw a ite .................................................................................................. 333C hem istry o f certain algae o f th e Pacific C oast, on the. D av id M.

B a lc h ...................................................................................................................... 777C hem istry o f flesh. A . D . E m m ett and H . S. G rin d lcy 413, 580C hem istry o f E ssentia l O ils and A rtificial Perfum es, T he. E rn est

J. Parry (B o o k )................................................................................................. 318C hem istry, regu lation s re la tive to new and non-official rem edies,

council on pharm acy and. V . C oblen tz .............................................. 119C hem istry, th e u n tilled field of. A rthur D . L it t le ................................ 105Chilean n itrate fields (Q u o t.) ................................................................................ 45Chlorate exp losion , a peculiar. G eorge C. D a v is ...................................... 118Chlorin detinn ing, th e m anufacture o f anhydrous chlorin from

m oist d ilu te gases and its in d u stria l application in . E lm erA . S p erry .............................................................................................................. 511

C itral in lem on ex trac ts and lem on oils, a m eth od for th e d eter­m in ation of. R . S . H iltn er ......................................................................... 798

C itrate o f lim e in sicily , th e m anufacture o f o il o f lem on and. E .M. C hace............................................................................................................... 18

Coal, accuracy in sam pling. E . G . B a ile y ................................................... 161Coal analysis. N . W . Lord (A dd ress)............................................................ 307Coal, th e am ou nt o f inert vo la tile m atter in th e m ineral con stitu en ts

of. W . B rinsm aid ..................................................................................... 65Coal, rapid m ethod for th e determ ination o f th e specific g rav ity of.

A braham G. B lak eley and E d w . M. C han ce....................................... 812C obalti n itrite m ethod , on th e determ ination o f p otassiu m b v the.

L . T . B ow ser ....................................................................................................... 791C ollege-trained chem ist, th e efficiency and deficiencies of. W m .

II. N ich o ls ............................................................................................................ 102College training confer practica l efficiency along tech n ical lines, to

w h at e x te n t should. L ouis M. D e n n is . ......................................... 194C olorim etric d eterm ination o f n itrates in so il so lu tion s contain ing

organic m atter. W . A. S y m e ........................................ 188C om bustion carbons, econom y in th e u se o f o x y g en for. W m .

H erbert K e en ..................................................................................................... 375C om bustion p ip ette , a n ew . W ilfred W . S co tt (N o te ) ...................... 118C om bustion crucible, a sim plified. Porter W . S h im er ........................... 738Com m ercial fertilizers, loss o f p otash in, 304; fertilizers, potash tes ts

in , 804; fertilizers, va lu a tion o f in so lu b le phosphoric a d d in, 371; liquefied am m onia gas and ap paratus for tes tin g it , 362; m anufacture o f am orphous ca ld u m phosphide, 178; preserva­tion of flesh foods, deterioration and, 95; p roducts o f a v iscou s or sein i-so lid con sisten cy , rapid determ ination o f m oisture in, 252; pyrid ine and its v a lu e as a so lven t, 360; sam pling andanalysis o f iron ores, U . S. S tee l Corporation m eth od s f o r . . . . 107

C om m ittee on analysis o f fa ts , soaps and glycerine, the. W . D .R ichardson (N o t e ) .................................... 44 , 144, 268

C om m ittee on the analysis o f phosp h ate rock, report o f th e ................. 41

S U B J E C T IND EX.

C om m ittee 24, In tern ation a l A ssociation for T estin g M a ter ia ls .. . 134C om m ittees. W . D . R ichardson (E d .) ............................ 635C om parison o f th e ca lcu lated and determ ined v iscosity num bers

(Engler) and flashing and burning p oin ts in o il m ixtures. H . C.Sherm an. T . T . G ray and H . A. H am m erschlag.......................... 13

Com parison o f m eth od s for th e preparation of m ilk serum. H er­m ann C. L y th goe and L ew is I . N urenberg.......................................... 38

Com parison o f m eth od s for th e determ ination o f sulphur in coal.S. W . Parr, W . F . W heeler and R uth B erolzheim er................. 689

C om position o f th e fa t o f b eef anim als on different p lanes o f nutri­tion . C. R . M oulton and P . F . T row bridge.................................. 761

C om position o f Scuppernong, Concord and C ataw ba grape juices, w ith som e n otes on the determ ination of to ta l acid. H . C.G ore .............................................................. 436

C om position o f p lan ts, influence o f shade upon the. R . W .T h atch er ................................................................................... 801

Concord and C ataw ba grape ju ices, w ith som e notes on the deter­m ination o f to ta l acid, com position o f Scuppernong. H . C.Gore........................................................................... 436

Concrete railw ay ties (Q u o t.) ..................................................................... 48C ondensation products of phenols and form aldehydes, soluble,

fusible, resinous. L. I I . B aek eland ............................................... 545Condensed m ilk, to determ ine fa t in sw eetened . C. B . C och ran .. 208 C onstitution and uses o f bakelite , the synthesis. L . H . B aeke­

lan d ................................................................................................................ 149C onsum ption o f n itrate of soda in th e U nited States. Chas. E .

M unroe.......................................................................................................... 297Contribution on th e chem istry and p hysics o f jelly-m aking. N . E ’.

G o ld th w a ite................................................................................................ 333C ontrolling th e con sisten cy o f b itum inous binders. C. N . Forrest. 378C onvenient d ev ices for u se in the m icroscopic stu d y o f opaque ob­

jects. W irt T a ssin 605Convenient funnel for introducing dry reagents or powders into

b o ttles and flasks w ith out loss of substance. Chas. H . Briggs. 206Copper, anti-p utrescen t effects of. A lfred Springer....................... 676Copper-clad steel. W irt T a ssin ................................................................ 670Copper in sugar analysis, volum etric determ ination of. E . B.

H ollan d ......................................................................... 3 * 3Corrected q u a lity figures. Geo. A u ch y ................................................. 736Corrosion o f m etals, p a in t and varnish coatings as accelerators in

the. W in. H . W alker and W arren K . L ew is .......................... 754C ottonseed products, rapid determ ination of o il in. Chas. H . H erty ,

F . B . Stem and M. Orr.................... ........................................................Council on pharm acy and chem istry, regulations re lative to new

and non-official rem edies. V . C oblentz.............................................. 119Crucible for th e determ ination o f carbon in steel, a nickel. H enry

E . K . R u p p el................................................................................................. 184Crucible, a sim plified com bustion. Porter W . Shim er.......................... 738Crude petroleum as a reducing agent for zinc ores. Harrison H ale. 788 Crude p etroleum effected b y diffusion through clay , the changes of.

D avid T . D ay and J. E llio tt G ilp in ....................................................... 449Crude sulphuric acid, th e m easurem ent of. F . B. P orter .................... 479C upellation, th e tem perature o f th e lead b u tton in. R obert H .

B rad ford .............................................................................................................. *8*C yanidation o f silver m inerals. Theo. P . H o lt ...................................... 694

D E C E N N IA L In d ex o f Journal o f the S ocie ty of C hem ical I n ­dustry (B o o k )................................................................................................... *25

D efin ition o f gasoline. Frederic S. H y d e . ......................................... - 377D esign, C onstruction and M aintenance of Sew age D isposal W orks,

The. H ugh P . R aikes (B o o k )................................................................. 222D etection o f p in h oles in tin p late. W m . H . W alk er........................ 295D eterioration and com m ercial preservation o f flesh foods. W . D.

R ichardson and E . F . S ch eru b e l. ....................................................... 95D eterm ination o f acctan ilid in hydrogen peroxide solutions, 262;

benzaldehyde in alm ond flavoring .extract, 256; benzoic acid in tom ato catsu p and other food products. 190; carbon b isu l­phide in ben zol, 604; casein in m ilk, 768; essential o il and alco­h o l in flavoring extracts. 84; fa t in cheese b y Babcock test, 604 ; insoluble phosphoric a d d , 119; iron in brasses and bronzes,187; ox id es o f iron and alum ina in F lorida phosphates, 477; phosphorus in flesh, 675; potassium b y th e cobalti-nitrite m ethod , 791; sulphurous a d d or su lphites or sulphur dioxide in food products, 81; to ta l, fixed and v o la tile a d d s in wines,50; v o la tile com bustib le m atter in coke and anthractie, 518;zinc b y w eighing as su lp h a te ..................................................................... 476

D evelop m en t o f in ten sely w orking apparatus in chem ical engineer­ing, th e . F r a u d s I . D u P on t (E d .) ........................................................ 327

D ie R affination D es Zuckers. -W ilhelm Gredingcr (B o o k )..................3 8 1D ie Theorie D er Farbevorgangc. D r. Procopios Zacharias (B ook ). 3 8 2D ivision o f Fertilizer C hem ists, m eeting o f ..................................... 1 3 0D ivision o f Ind u stria l C hem ists and C hem ical E ngineers, m eeting

o f ............................................................................................................................... 1 2 8D ry reagen ts or pow ders in to b o ttles and flasks w ith ou t loss o f

substance, a con ven ient fu nn el for in troducing, Chas. H .B riggs...................................................................................................... 2 0 6

D yes, Ind ian indigenous (Q u ot.) .................... 4 ”D ynam ic v iew p oin t o f soils, the. Frank K . C am eron......................... 8 0 6

E C O N O M IC reasons for th e reduction o f m ilk to powder. Lew isC. M errell...................................................................................... 5 4 0

E con om y in th e u se o f o xygen for com bustion carbons. W m .H erbert K e en ........................................................................................................3 7 5

E d ito r ia ls .....................................................................1, 4 7 , 6 1 , 2 3 3 , 3 2 7 , 5 0 5 , 6 8 5E d u cation . W . R . W h itn ey (E d .) .................................................................. 1 4 7E ffect o f th e proposed tariff b ill on A m erican chem icals. J . D .

P en n ock ...................................................................................................................3 7 4E ffects of Form aldehyde u pon D igestion and H ealth . B ureau o f

C hem istry (B o o k )............................................................................................. 1 2 5E ffect o f Superheated Steam on V alves and F ittin gs. T h e Crane

C om pany (B o o k ).............................................................................................. 1 2 6E fficiency and d e fid en d es o f th e college-trained chem ist, w hen

tested in th e tech n ica l field. W m . H . N ich o ls ................................. 1 0 2E lectr ic P roduction of N itra tes from th e A tm osphere, T he. S . P.

T hom pson (B o o k ).......................... 2 2 2E lectr ic s tee l furnace, the. W . R . W h itn ey (E d .) .............. 6 4E lectr ica lly h eated incubator, an. Chester R . F ish er ........................... 4 8 0E lectrodes, th e m anufacture o f carbon. G. A . Roush*......................... 2 8 6Electro-M ctallurgy. John B . K ershaw (B o o k )......................................... 4 9E m ulsions in organic an alysis, m ethods o f avoid ing. S . S. Sadtler. 4 7 9E ngineering supplies, th e eth ics of. W m . H . W alker (E d .) ............. 2E rectin g w ork. H ubert E . Collins (The Pow er H a n d b ook s).......... 51E rra ta .............................................................................................................................. 7 5 0E ssentia l o il and alcohol in flavoring extracts, th e determ ination

of. Ju liu s H o r tv et and R odn ey M ott W e s t ...................................... 8 4E stim ation o f iron ox id e and a lum ina in phosp h ate rocks, the.

T hos. S . G ladd in g ............................................................................................ 2 4 9E stim ation o f pyrid ine in aqua am m onia. A . C. H o u g h to n ............. 6 9 8E th ics o f engineering supplies, the. W m . H . W alker (E d .) ............ 2E xam in ation o f flue g a s .s in boiler tests . H . A. H u n ic k e . ............. 2 2 3E xp losion pressure o f th e supernatant m ixtu re o f air and vapor, th ex

relation b etw een th e tem perature o f kerosene and the. W.£"P . Bradley and C. F. H a le ...........................................................................* 3 4 5

E x p losives in th e m ail and transportation, recent leg islation rela­tiv e to . Chas. E . M unroe........................................ 3 6 9

E x tra c tiv es from guayule. Chas. E . S w e tt .............................................. 3 1 5

F A B R IK A T IO N V on Leim und G elatine, D ie. D r. LudwigThiele (B o o k )..................................................................................................... 1 2 5

F actory G lazes for Ceramic Engineers. A. W est (B o o k ) .................... 2 2 2F at extraction apparatus and a new form o f flask, m ercury seals

in. A lbert P. S y .................................................. — 3 1 4F a ts and oils, ca ta ly tic reduction of. J . B ishop T ingle (Q u o t .) . . . 4 7F ats , soaps and glycerine, the com m ittee on analysis of. W . D.

R ichardson (N o te ) ............................................ 4 4F a tty a d d s o f fish oils, a stu d y o f the. L. M. T o lm a n ..................... 3 4 0F a t and b eef anim als on different p lanes of nutrition , com position

o f the. C. R. M oulton and P . F. T row bridge............................. . 7 6 1Fertilizer m aterials, experim ents on th e u tiliza tion o f nitrogen in.

Edw ard B . V oorhees and Jacob G. L ip m an .................................... 3 9 7Fertilizers, potash tests in com m erdal. J . E- Breckenridge 8 0 4Fertilizers, potash tests in m ixed. J . E . B reckenridge.......................4 0 9Fertilizers. Soils and. H arry Snyder (B o o k ) . ............................ 5 0Fink sm elter, the. W . C. E b au gh ................................................................... 2 1 7Fireproof m aterials. E rnest B . McCready (E d .) ...................................... 2 8 5Fire test as gauge o f danger for kerosene. D . R . S teu a rt ................. 6 7 9Fish oils, a stu d y o f th e fa tty a d d s of. L. M. T o lm an ......................... 3 4 0Fixation o f n itrogen, the. F. B . Carpenter (E d .) ................................ 4Flashing and burning points in o il m ixtures, a com parison o f the

calculated and determ ined v isco sity num bers (Engler) and.H . C. Sherm an, T . T . G ray and H . A. H am m erschlag................ 1 3

Flavoring extract, th e determ ination o f benzaldehyde in alm ond.W . D en is and P. B . D un b ar.............................................................. 2 5 6

Flavoring extracts, the determ ination of essential o il and alcoholin. Ju lius H ortvet and R odn ey M ott W est.................................. 8 4

8s8 T H E J O U R N A L OF I N D U S T R I A L A N D ENGINEE RIN G C H E M I S T R Y . Dec., 1909

F lesh foods, th e deterioration and com m ercial preservation of.W . D . R ichardson and E . F. S ch erubel.............................................. 95

Florida phosphates, th e determ ination o f ox id es o f iron and alum inain . H . H erzog......................................... 477

Flour bleaching, it s relation to bread production and nutrition .John A . W esener and Geo. L. T e ller ................................................... 700

Fluorspar, barium and sulphur in. H enry G. M artin ........................ 462Food products, determ ination o f benzoic acid in tom ato catsup

and other. R odn ey M ott W e s t ............................................................... 190F ood products, determ ination of sulphurous acid or su lp h ites or

sulphur dioxide in. Edw ard G u d em an ................................................ 81F orm aldehyde, soluble, fusib le, resinous condensation p rod ucts o f

phenols and. L. H . B aek elan d ................................................................ 545Form ation o f w hite scale on steel and the surface decarbonization

o f p ipe annealed steel. Chas. Morris J o h n so n ...................................459Fractional d istilla tion , th e theory of. W arren K . L ew is .................... 522F ree lim e in Portland cem ent. A lfred H . W h ite .................................. 5F ree lim e in Portland cem ent. Arthur G. S m ith ................................ 6 6 8Furnace, th e electric steel. W . R . W h itn ey (E d .) ................................ 64Further rem arks on vanadium and it s estim ation . G eo. A u c h y . . 455

G A S generator, m odified form of th e K ipp. F. A lex . M cD erm ott. 811 G aseous F u els and the Part T h ey P lay in M odern Pow er P rodu c­

tion , Liquid and. V iv ian B . Lew is (B o o k )..................................... 51G enerator coils, an unusual incrustation on . C. H . E h r e n fe ld . . . 208 G lycerine, the com m ittee on th e analysis o f fa ts, soap s and (N o te). 44G as filter, th e new Brady. L . A . T ou za lin .................................................. 317G ooch crucibles for asphalt an alysis, th e preparation o£. B .

M ears...................................................................................................................... 477Grape ju ices, w ith som e n otes on th e d eterm ination o f to ta l acid,

com position o f Scuppernong, Concord and C ataw ba. H . C.G ore........................................................................................................................... 436

G u ayu le rubber, I and I I . Theodore W liit te lse y ..................................... 245

H A N D B O E K T en D ien ste V an de Suikerriet-C ultur en de R iet-suikcr-Fabricage of Java . J . II . de B u ssy (B o o k )......................... 380

H andbook for C em ent W orks C hem ists. Frank B . G atehouse(B o o k )................................................................................................................... 222

H ea t E n ergy and Fuels. I la n n s v . Ju ptn er (B o o k ) ........................... 272H em pel p ip ette , phosphorus for the. H . A u gu stu s H u n ick e

(N o te ) .................................................................................................................... 205H om e-m ade electric furnace. W in. H erbert K e e n ................................ 741H u m u s in a prairie soil, a rem arkable accum ulation o f nitrogen,

carbon and. F . J . A lw ay and C. E . V a il..................... 74H yd rolyzin g starch, a rapid m ethod of. G eorge A . O lson .................... 445H ygien ic significance o f sulphur in gas. F . E . G allagher................. 656

I L L IN O IS fuel conference (N o te ) ..................................... 269Illino is G eological Survey, B u lle tin N o. 9 , p av in g brick and p aving

brick clays o f I llin o is ..................................................................................... 383Incand escent lam p s w ith vo la tile so lven ts, on th e use of. E . O.

T h om as ................................................................................................................. 40Incubator, an electrically heated . Chester F . F ish er ..............................480Indian indigenous d yes (Q u o t.).......................................................................... 47Ind iana S teel C om pany’s P lant a t Gary, Ind . W . D . R ich ard ­

s o n ........................................................................................................................... 209Industria l and trade n o te s 57, 135, 224 , 273, 323 , 395, 498 , 629Industria l chem ist and h is journal, th e . T . J . Parker (E d .) ............ 1Industria l d evelopm ent, p a ten ts, trade nam es and trade secrets in .

W H . S w enarton ............................................................................................. 1 9 9Ind u stria l fellow ships. R obert K enn ed y D u n ca n ...................... . . ..........600Ind u stria l incom patib ilities. W . C. E b au gh (E d .) .................................. 635In ert vo la tile m atter in the m ineral con stitu en ts o f coal, th e am ount

of. W . B rinsm aid ........................................................................................... 65Influence o f shade upon th e com position o f p lan ts. R . W .

T h a tch er ............................................................................................................... 801Influence o f the tem perature o f burning on th e rate o f h ydration

o f m agnesium oxid e. E dw . D eM ille C am pbell................................ 665Inso lu b le phosphoric acid in com m ercial fertilizers, th e va lu ation

of. R . H . F a sh ...................................................................................................3 7 1In s t itu te o f chem istry , an Am erican. Geo. A u ch y (E d .) .................... 65In ten se ly w orking apparatus in chem ical engineering, the d evelop ­

m en t of. Francis I. D u P o n t..................................................................... 327In tern ation a l Congress o f A pplied C hem istry ...................................267, 319Introdu ction to th e C hem istry and P h ysics o f B uild ing M aterials.

A llen E . M unby (B o o k )........................................................................ 482Iodide-starch paper, potassium . C. G. S to rm ........................................... 802Iod in e, tin ctu re of. A zor T h u rston .................. 789

Iron in brasses and bronzes, d eterm ination of. I . M. B regow skyand L . W . S prin g .............................................................................................. 187

Iron ores, th e m eth od s o f th e U . S. S teel Corporation for th e com ­m ercial sam pling and an a lysis of. J . M. Camp (N o te ) 107

Iron ox id e and alum ina in p hosp h ate rocks, th e estim ation of.T hos. S . G ladd in g............................................................................................. 249

J A H R B U C H des V creins der S p iritus-F abrikanten in D eu tsch ­land, des V ereins der S tark e Intersentcr in D eu tsch land , andV ereins D eu tscher K artoppel-T rockner (B o o k )................................ 481

Jelly-m ak in g, contribution on th e ch em istry and p hysics of. N .E . G o ld th w a itc ......................................................................................................333

K E R O S E N E , fire te s t as gau ge o f danger for. D . R . S te u a r t . . . 679 K etch up s or o th er food m aterials, m eth od for determ in ing sodium

b en zoate in . W m . E . H illy er .................................................................... 538K ipp gas generator, m odified form o f the. F . A lex . M c D e r m o tt .. 811 K n ock s and K ink s (The Pow er H an d b ooks). H u b ert E . Collins

(B o o k ).................................................................................................................... 51

L A B O R A T O R Y E xp erim en ts in M etallurgy. A lb ert S auveurand H . N . B oylston (B o o k )........................................................................ 124

L ab oratory G uide o f Ind u stria l C hem istry. A llen R ogers (B ook ). 50 L aboratory M anual o f D yein g and T ex tile C hem istry. J . M erritt

M atthew s (B o o k ) .............................................................................................. 382L aboratory N otes on Ind u stria l W ater A nalysis. E llen H I R ich ­

ards (B o o k )......................................................................................................... 124L am ps w ith vo la tile so lven ts, on th e use o f incan d escen t. E . O.

T h o m a s .................................................................................................................. 40L ead and Zinc P igm en ts, the. Clifford D . H olley (B o o k ) 742Lead arsenate for w ater-solub le im purities, an a lysis of. R oger C.

Griffin..................................................................................................................... 659L ead b u tto n in cu pellation , th e tem perature o f the. R ob t. I I .

B rad ford ............................................................................................................... 181L ead m anufacture, th e Carter process o f w hite. J . S . S ta u d t 758L ead num ber o f van illa ex tracts. H . L ouis Jackson and W m . T .

M cGeorge, J r ....................................................................................................... 478L eath er D ressings, th e M anufacture o f Lubricants, S hoe P olishes

and. R ichard Brunner (B o o k )................................................................ 50L egum es to th e so il o f N eb raska prairies, on th e re lation o f n ative.

F . J . A lw ay and R . M. P in ck n ey ............................................................. 771L em on and citra te o f lim e in s ic ily , th e m anufacture o f o il of. E .

M . C hace............................................................................................................... ISL em on extracts and lem on oils, a m eth od for th e d eterm ination of

c itral in . R . S . H i lt n e r . ......................................................................... 789L em on oils, a m eth od for th e determ ination o f citral in lem on e x ­

tracts and. R . S . H iltn er ........................................................................... 798L es d ensities des so lu tion s sucrées, à D ifférentes tem peratures.

D . S idcrsky (B o o k )..................................................................................... 125Lim e, th e ana lysis o f com m ercial ace ta te of. T hos. S . G ladding 250L im e in P ortland cem ent, free. A lfred H . W h ite ..................................... 5L im ita tion s o f th e chem ist, the. A . E . L ea c h ......................................... 505L im ita tion s o f starch as an accelerator. C. K . F ran c is ...................... 678L iq u id and G aseous F u els and th e P art T h ey P lay in M odern Pow er

P roduction. V iv ian B . L ew is (B o o k ) . ......................................... 51L iquid m ixtures for m axim u m and m in im um therm om eters.

R obert E . B rad ley ........................................................................................... 813L iquids low in alcohol, loss o f a lcohol from . W m . B . B e n t le y . . . 481 Loss o f a lcohol from liqu id s low in alcohol. W m . B . B e n t le y — 481 Loss o f p otash in com m ercial fertilizers. F . B . Porter and E- G.

K e n n y .......................................................................................................................304L ubricants, Shoe P olishes and L eather D ressings, th e M anufacture

of. R ichard Brunner (B o o k ).................................................................... 50L ubricating greases, an a lyses and friction te s ts of. H orace W .

G ille tt ................................................................................................... 351

M A G N E S IU M oxid e, in fluence of th e tem perature o f burning onth e rate o f h ydration of. E dw . D eM ille C am pbell................ 665

M anganese in som e o f it s re lations to th e grow th o f p in eapples.W . P . K e lle y ....................................................................................................... 533

M anganese in steel. G eo. A u c h y ...................................................................... 607M anganese in steel, rap id determ ination of. G eorge A u c h y 813M anufacture, natural resources and. A . D . L ittle (E d .) .................... 61M anufacture o f am orphous calcium phosphide, th e com m ercial.

Chas. E . M unroe.................................................................................. 178M anufacture o f carbon electrodes, th e . G. A . R o u sh ............................286M anufacture o f L ubricants. Shoe P o lishes and L eather D ressings,

th e . R ichard Brunner (B o o k )................................................................. 50

S U B J E C T IN D E X . 829

M anufacture o f o il o f lem on and citra te o f lim e in sicily . E . M.C hace ................................................................. 18

M aple sugar and syrup, suggested standards for. H . W . Cowles,J r .............................................................................................................................. 773

M assecuites and m olasses, m eth od o f analysis for. G. A . R o u s h .. 370M easurem ent o f crude sulphuric acid, th e . F . B . P or ter ....................479M easuring device, an accurate and rapid . Isa a c F . H arris and S.

D . B eard .......................................................................................................... 603M echanical A ppliances o f th e C hem ical and M etallurgical Industries.

D r. O skar N agel (B o o k )............................................................................... 124M ercury seals in fa t extraction apparatus and a new form o f flask.

A lb ert P . S y .......................................................................................................... 314M etallography. Dr. W . Guertler (B o o k ) ............................................ 776M etallurgy. H enry W ysor (B o o k )......................................................... 49M ethod for th e determ ination o f citral in lem on extracts and lem on

oils. R . S . H iltn er ......................................................................................... 798M ethod for determ ining sodium b en zoate in k etch u ps or o ther food

m aterials. W m . E . H illyer ........................................................................ 538M ethod o f analysis for m assecu ites and m olasses. G. A . R ou sh . . 370M ethod o f avoid ing em ulsions in organic analysis. S . S . S a d t le r .. 479Methods and D ev ices for B acterial T reatm ent o f S ew age. W m .

M ayo V enable (B o o k )................................................................................... 51M ethods o f th e U . S. S teel Corporation for th e com m ercial sam pling

and analysis o f iron ores. J. M. Camp (N o te ) ............................. 107M ethods o f T ex tile C hem istry. Frederick D annerth (B o o k ) 221Milk serum , a com parison o f th e m ethods for th e preparation of.

H erm ann C. L yth goe and L ew is I . N u r en b e rg ................................ 38Milk, a new m eth od for th e calcu lation of th e proteins iji. Geo. A.

O lsen ...................................................................................................................... 253Milk, a rapid m eth od for determ ining the p ercentage o f casein in.

T . Brailsford R ob ertson ............................................................................... 723M ilk, a vo lu m etric m ethod for th e determ ination o f casein in.

Lucius L. V an S lyk e and Alfred W . B osw orth ................................ 768Milk, to determ ine fa t in sw eetened condensed. C. B . C och ran .. . 208 M ineral con stitu en ts o f coal, th e am ount o f in ert v o la tile m atter in

the. W m . B rinsm aid ................................................................................... 65M ilw aukee Section, A m erican C hem ical S o c ie ty ........................................ 134M ineral con ten t o f Illinois w aters. B u lletin N o. 4 , I llinois S ta te

W ater S u rv ey .................................................................................................... 742M itchell-W alker m oisture test. J. W . M itchell and W . O. W alker. 205 M ixture o f air and vapor, th e relation b etw een th e tem perature of

kerosene and the explosion pressure o f the supernatant. W . P .B radley and C. F . H a le ................................................................................ 345

Modern electric pyrom ctry. E dw in F . N orth ru p .................................. 223Modern Pow er Gas Producer. H orace A llen (B o o k )........................... 124Modified form o f th e K ipp gas generator. F . A lex . M c D er m o tt.. 811Modified K je ld a lil connecting bulb, A. C. A. Jen n in gs..................... 738M odified K jeldahl connecting bulb, A. G. W atson G ray ........ 814M oisture con ten t in b utter as show n b y different m ethods o f sam p­

ling, variation of. F loyd W . R ob ison .................................................. 315M oisture con ten t o f butter. A. B . A d am s.................................................. 680M oisture determ ination , the. W . D . R ichardson (E d .) ....................... 685M oisture d iscrepancies in phosphate rock o f the Pacific. Carlton

C. J a m es .............................................................................................................. *>57M oisture in com m ercial products o f a v iscou s or sem i-solid con­

sisten cy , th e rapid determ ination of. A rthur L ow en ste in . . . 252M olasses feeds, A m erican. J. E . H a lligan ..................................................... 441Molasses, m eth od o f analysis for m assecuites and. G. A. R o u s h . . 370 Mr, B a iley ’s paper on accuracy in sam pling coal. Pennim ann and

B ro w n ...................................................................................................................

N a p h t h a as a turpentine adulterant, light. R . H . A c o tt 117N ational conservation com m ission, report of th e com m ittee o f the

A m erican C hem ical S ocie ty appointed to cooperate w ith t h e . . 115N ational fertilizer association . 16th annual con ven tion .......................624N atural resources and m anufacture. A. D . L ittle (E d .) .................... 61N ebraska prairies, on the relation o f n a tive legum es to th e soil of.

F . J . A lw ay and R . M. P in ck n ey ............................... 771N eed o f m eth od s o f analysis of pharm acopoeial articles. B . L.

M urray. 7 7 5

N e w B o o k s ...................... 5 2 , 2 2 3 , 2 7 2 , 3 1 8 . 3 8 4 , 4 8 3 . 6 0 7 , 6 8 0

N ew bom b calorim eter, A . Chas. J. E m erson ..................................... 17N ew B rad y gas filter, the. L . A . T ou za lin .......................................... 317N ew com bustion p ip ette , A . W ilfred W . S c o t t .................................... 118N ew m ethod for th e ca lcu lation of the proteins in m ilk, A. Geo.

A . O lsen ...................... 2 5 3N ew p la n ts ......................................................................................................................209N ew v iscosim eter, A .............................................................................. **1N e x t step in p ub lication for th e A m erican C hem ical Society , the.

W . A . N oyes (E d .) .......................................................................................... 148

N ick el crucible for th e determ ination o f carbon in steel. A. H enryE . K . R u p p el................................................................................................. 184

N itrates in boiler w aters. Geo. S. Jam ieson ............................. 7S7N itrates in soil so lu tions contain ing organic m atter, colorim etric

determ ination of. W . A . S y m e ............................... 188N itra te o f soda in th e U nited S ta tes , the consum ption of. Chas.

E . M unroe................................................................................................. 297N itrogen , carbon and hum us in a prairie soil, a rem arkable ac­

cum ulation of. F. J. A lw ay and C. E . V a il ..................................... 7 4N itrogen in fertilizer m aterials, experim ents on th e u tiliza tion o(.

E dw . B . V oorhees and Jacob G. L ip m an ........................................... 3 9 7N itrogen, the fixation of. F . B . Carpenter (E d .) .................................. 4N itrogen, th e ox id ation o f atm ospheric. Dr. O tto Schneider

(Q u o t.).................................................................................................................. 1 2 0N ote on a rapid cooling electrically h eated com bustion tube.

E d w . D eM ille C am pbell................................................................................ 7 3 9N otes and corresp on d en ce.. 107, 205, 260, 312, 369, 475, 678. 734, 810N otes on anthracite producer practice. Geo. C. S to n e ...................... 11N ote on Mr. B a iley ’s paper 011 accuracy in sam pling coal. Geo.

C. S to n e ................................................................................................................ 262N o te on turpentine. Arthur E . P a u l............................................................. 261

O B I T U A R Y . E m il Chr. H a n sen .................................................................. 7 3 3O fficial regulations and ru lings. .59 . 142, 230, 274, 391. 499, 750, 776, 818Oil shales o f A m erica. Chas. B askerville and W . A. H am or 507O il in co tton seed products, rapid d eterm ination of. Chas. H .

I ler ty , F. B . S tem and M. Orr......................................................... 76O il o f lem on and citra te o f lim e in sicily . th e m anufacture of. E .

M. C hace..................................................................................................... 1 8O il m ixtures, a com parison o f th e ca lcu lated and determ ined v is ­

co sity num bers (Engler) and Hashing and burning p o in ts in.H . C. Sherm an, T .'T . G ray and H . A . H am m ersch lag............. 13

Organic analysis, m eth od o f avoid in g em ulsions in. S . S . S a d t le r .. 479O riginal p ap ers 65. 149, 235. 286, 328, 397 , 507 , 636, 6 8 6 , 751, 777O xidation o f atm ospheric nitrogen. D r. O tto Schneider (Q u o t .) . . 120O xides o f iron and a lum ina in F lorida phosphates, th e determ ina­

tion of. H . H erzog .................................................................................4 7 7O xygen for com bustion carbons, econom y in th e u se of. W m .

H erbert K ern ............................................................................................ 3 7 5

P A I N T and varnish coatin gs as accelerators in th e corrosion o fm etals. W m . H . W alker and W arren K . L ew is ........................ 7 5 4

Paper, potassium -iod ide starch. C. G. S to rm ............................ 802Parallel determ inations w ith the M ahler and Parr calorim eters, a

series of. S . W . Parr and W . F . W h eeler .......................................... 673Paris green and other insecticides, a quick m ethod for th e d eter­

m ination o f arsenious ox id e in . C. C. H ed ges......................... 208P a ten t system and suggested rem edies, som e d efects in th e prac­

tice o f our. Louis C. R aegcn er........................................................ 201P aten ts, trade secrets and trade nam es as factors in industria l

developm ent,. their re lative functions. W . H astin gs Swenar-to n ........................................................................................................................... 1 9 9

Peculiar chlorate exp losion . A. Geo. C. D a v is ......................................... 1 1 8Pepperm int oil. A m erican (Q u o t.) .................................................................... 219Personal N o te s ....................................................135. 224, 273, 320, 387 494Petroleum as a reducing agen t for zinc ores, crude. H arrison H ale 788Pharm accutical chem istry during 1908. V . C oblen tz 257, 310Pharm aceutical estab lishm ent, a system o f records for the scientific

work o f a m anufacturing. Frank R . E ldred. . ........................ 372P harm acy an d chem istry , regulations re la tive to new and n on ­

official rem edies, council on . V. C oblen tz ......................... 1 1 9P henols and form aldehyde, soluble, fusible, resinous, condensa­

tion products of. L. H . B aek eland ........................................................ 5 4 5P hosphate rock, report o f th e com m ittee on the analysis of. C.

F . H agedorn, C. H . D em pw olf, Jr.. and F . B . C a rp en ter .. . . 41 P hosphate rock o f th e pacific, m oisture d iscrepancies in . Carlton

C. J a m es ...................................................................... 657Ph osph ate rocks, th e estim ation o f iron ox id e and alum ina in.

Thos. S . G ladd in g............................................................................................ 249P h osph ates, soil ac id ity in it s relation to lack o f available. C. W .

S tod d art............................................................................................................... 69Phosphoric acid, determ ination o f insoluble. F . B . C a r p e n te r .., 119Phosphorus for th e H em pel p ip ette . II. A ugustus H u n ick c 205Phosphorus in flesh, the determ ination of. P . F . T row bridge. . . . 675 Pineapples, m anganese is som e o f its relations to th e grow th of. W .

P . K e lle y .............................................................................................................. 533P ine products from pine w oods. J. E . T ee p le ............... 5 9 7Pin holes in tin p late, the d etection of. W m . II. W alk er .................... 295P ipe annealed steel, the form ation of w h ite scale on stee l and the

surface decarbonization of. Chas. Morris J o h n so n .......................4 5 9

830 T H E J O U R N A L OF I N D U S T R I A L A N D ENG IN EER IN G C H E M I S T R Y . Dec., 1909

P ip es and p iping. H u b ert E . C ollins. (The Pow er H an d b ook s). 51 P la n ts , th e influence o f shade upon th e com position of. R . W .

T h a tch er ................................................................................................................. 801P olarization o f raw sugars and o ther p roducts u p on th e quartz

w edge saccharim eters, use o f tem perature corrections in the.C. A . B row ne. . ................................................................... 567

P ortland cem ent, free lim e in. A lfred H . W h ite, 5; free lim e in.A rthur G. S m ith ................................................................................................ 6 6 8

P ortland cem ent in d u stry from a financial stand p oin t, the. E . C.E ck el (B o o k )....................................................................................................... 384

P ost-grad u ate stu d y , th e a ttitu d e of tech n ical in stitu tion s to . W m .M cM urtrie............................................................................................................. 196

P o st's C hem ische-Tcchnische A nalyse. Prof. D r. Bernard N eu ­m ann (B ook) .........................................................................................318 , 383

P otash in com m ercial fertilizers, loss of. F . B . Porter and E . G.K e n n ey ................................................................................................................... 304

P otash in soils, a rapid m ethod for th e determ ination o f to ta l. O.M. S h ed d ............................................................................................................... 302

P otash tests in com m ercial fertilizers. J . E . Breckcnridge, 804;m ixed fertilizers. J . E . B reckcnridge.................................................... 409

P otassiu m b y th e cobalti-n itrite m ethod , the d eterm ination of.L. T . B ow ser...................................................................................................... 791

Potassium -iodide-starch paper. C. G. S to rm .............................................. 802Pow er handbooks, the. (1) K n ock s and k inks; (2) erecting

w ork; (3) p ipes and piping. H u b ert E . ColUns........................... 51P ractical testing o f gas and gas m eters. C. H . S ton e ( B o o k ) . . . . 482 Preparation o f G ooch crucibles for asph alt analysis. B . M c a r s .. . 477 Preparation o f soil sam ples for chem ical analysis, th e . G. M.

M cN ider..................................................................................................•............... 4 4 7P reservation o f flesh foods, th e deterioration and com m ercial. W .

D . R ichardson and E . F . S ch crubel........................................................ 95P rices and U ses o f T ested R eagents, 1909. Merck & Co. (B o o k ) . . 105 Principles and Practice o f A gricultural A nalysis. H . W . W iley

(B o o k ).................................................................................................................... 123Producer gas, notes on anthracite . Geo. C. S to n e .................................. 11P roducts o f the Badisclie A nilin- an d Soda-F abrik , th e (Q u o t .) . . . 121 Products o f a v iscous or sem i-solid con sisten cy , th e rapid deter­

m ination of m oisture in com m ercial. A rthur L o w e u ste in .. . 252 P roteins in m ilk, a new m ethod for th e calcu lation o f the. Geo.

A . O lson ................................................................................................................. 253P u rity o f com m ercial liquefied am m onia gas and apparati for

testing it. F . W . Frcrichs.......................................................................... 362P u trescib ility test for sew age and sew age effluents, experim ents

on the. D . D . Jackson and W . A . H o r to n ....................................... 328P ycnom eter for determ ining the specific g rav ity o f sem i-solid

bitum ens. Prevost H u b b ard ................................................................... 475P yrid in e in aqua am m onia, th e estim ation of. A. C. H ou gh ton . . 698 P yrid ine and its va lu e as a so lven t, com m ercial. K . G. M acK ensie 360

Q U A R T Z w edge saccharim eters, u se o f tem perature corrections in th e polarization of raw sugars and other products upon . C.A . B ro w n e . .....................................................................................................567

Q uick m ethod for the d eterm ination o f arsenious ox id e in Parisgreen and o ther in secticides. C. C. H ed ges ....................................... 208

Q u ota tion s................................................................................................... 45 , 120, 219

R .A P ID analysis o f b a b b itt m etal. P ercy H . W alker and H . A .W h itm a n .............................................................................................................. 519

. R ap id determ ination o f m anganese in steel. G eorge A u c h y 813R apid determ ination of m oisture in com m ercial products o f a | ‘i v iscou s or sem i-solid consistency, the. A rthur L ow en ste in . . 252 R ap id m eth od o f determ ining the p ercentage o f casein in m ilk, A .jr.* 'i • T . Brailsford R ob ertson ............................................................................... 723R ap id m ethod for th e determ ination o f the specific grav ity o f coaL

Abraham G. B lak eley and Edw . M. C han ce.................................... 812R ap id m ethod o f hydrolyzing starch. A . G eo. A . O lson ....................445R apid M ethods for th e Chem ical A nalysis of Special S teels. S teel-

M aking A lloys and G raphite. Clias. Morris Johnson (B ook ). . 271 R ap id m ethod for the determ ination o f to ta l p otassiu m in soils, A .

O. M. S h e d d ....................................................................................................... 302R are earths, the. H . S . Miner and M. C. W h itak er............................. 235R ead justm en t. W . R . W h itn ey (E d .) ........................................................... 233R ecen t leg islation re la tive to exp losives in th e m ail an d transpor­

ta tion . Chas. E . M unroe............................................................................ 360R ecen t in vestigation s on fa ts and oils. J. B ishop T in g le ................. 736R ecen t p a te n ts .................................................................... 388, 495, 625, 682, 744R ecovery o f glycerine b y th e T w itch ell process com pared w ith the

recovery o f glycerine b y w aste soap m ethods. O. T . J o s l in . . 654 R ed u ction o f fa ts and oils, ca ta ly tic . J . B ishop T in gle (Q u o t.) . . 47R ed u ction o f m ilk to pow der, econom ic reasons for the. L ew is C.

M errell................................................................................................................... 540

R elation b etw een th e tem perature o f kerosene and th e exp losion pressure o f th e supernatant m ixtu re of. air and vapor, th e . W .P . B radley and C. F . H a le ........................................................................... 345

R elation o f n a tive legum es to th e so il o f N ebraska prairies, on the.F . J . A lw ay and R . M. P in c k n ey ........................................................... 771

R em arkable accum ulation o f nitrogen, carbon and h um us in aprairie soil, A . F . J . A lw ay and C. E . V a il..................................... 74

R ep ort o f th e C om m ittee o f th e A m erican C hem ical S ocie ty , ap ­p o in ted to co-operate w ith th e N ation a l C onservation Com ­m ission ..................................................................................................................... 115

R ep ort o f th e com m ittee on th e analysis o f phosp h ate rock. C.F . H agedorn, C. H . D em pw olf, Jr., and F . B . C arpenter 41

R e v ie w .................................................................................................................... 257, 310R oad problem and th e chem ical engineer, the. Clifford R ichard­

son (E d .) ............................................................................................................... 63R osin at sligh tly e leva ted tem peratures, th e s ta b ility of. Chas. H .

H erty and W . S. D ick son ............................................................................. 6 8

S A L T P E T R E , th e u tiliza tion o f atm ospheric nitrogen, particularlyfor th e m anufacture o f air. D r. A . B ern th sen ............................. 464

Sam ples, standardized. W . C. E b au gh (E d .) ............................................ 62Sam pling. W . D . R ichardson (E d .) ................................................................. 149S cientific and Ind u stria l S o c ie tie s ............................................................

........................................................ 53 , 127, 223, 319, 384, 485 , 610. 742, 816S cuppcrnong. Concord and C ataw ba grape ju ices, w ith n o tes on

the determ ination o f to ta l acid, com position of. H . C. G ore. 436 Sem i-annual Scientific and Ind u stria l B u lletin o f R oure-B ertrand

F ils ( B o o k ) . . ........................................................................................................ 272Sem i-annual R eport o f Sch im m el & Co. (B o o k ).......................................... 125Series o f parallel determ inations w ith th e M ahler and Parr calorim ­

eters, A. S . W . Parr and W . F . W h eeler ....................................... 673Serum , a com parison o f m eth od s for th e preparation o f m ilk. H er­

m ann C. L yth goe and L ew is I . N u r en b e rg ......................................... 38S even th In tern ation a l Congress o f A pplied C hem istry, L o n d o n .. .

.......................................................................................................131, 387 , 490 , 618S ew age and sew age effluents, exp erim en ts on th e p utrescib ility

te s t for. D . D . Jack son and W . A. H o r to n ......................................... 328Shade u pon th e com p osition o f p lan ts, influence of. R . W .

T h a tch er ................................................................................................................. 801S hoe P o lishes and L eath er D ressings, th e M anufacture o f Lubri­

can ts. R ichard Brunner (B o o k )............................................................. 50S hort H andbook o f Oil A nalysis, A . A . H . G ill (B o o k ).......................... 272S hort P h arm aceutic C hem istry, Inorganic and Organic, A . I . V .

S tan ley S tan islau s (B o o k ) ............................................................. 220S ilica, stud ies in the u ses o f fin ely d iv id ed . S. W . Parr, T . R .

E rn est and W . S . W illia m s........................................................................... 692S ilver m inerals, cyan id ation of. T heo. P . H o lt .................................... 694S im p le cover for an a lytica l w eigh ts, A . L . T . B ow ser.........................377S im p le rapid process vin egar generator for laboratory use. II . C.

G ore........................... »............ 260S im ple specific g ra v ity ap paratus for P ortland cem ent. Frank

G o ttsch .................................................................................................................... 207S im plified com b u stion crucible, A . Porter W . S h im e r ........................... 738S ize-w eigh t p ercentage, th e . E . G. B a ile y .....................................................377S keleton o f b eef anim als, changes in th e com position o f the. P . F .

Trow bridge and F . W . W ood m an ............................................................ 725Skin pulp in tom ato catsu p , te s t for. H . W . Cowles, Jr. (N o te ) . 44Sm okeless C om bustion o f Coal in B oiler P lants. D . T . R andall

(B o o k )..................................................................................................................... 483Sodium b en zoate in k etch u p s or other food m aterials, m eth od for

d eterm ining. W m . E . H illy e r ......................................................... 538Sodium for D rying Transform er O ils (N o te ) ................................ ......... 269Soil, a rem arkable accum u lation in nitrogen, carbon and h um u s

in a prairie. F . J . A lw ay and C. E . V a il............................................ 74Soil ac id ity in it s re lation to lack o f ava ilab le phosp h ates. C. W .

S to d d a rt ................................................................................................................ 69Soils, th e d ynam ic v iew -p o in t of. Frank K . Cameron, 806 , a rapid

m eth od for the d eterm ination o f to ta l p otassiu m in . O. M.S h e d d . . . . .............................................................................................................. 302

S o il and Fertilizers. H arry Snyder (B o o k )................................................. 50S oil fe r t ility ................................................................................................................... 263S o il sam ples for ch em ical analysis, th e preparation of. G . M. Mc­

N id er ..........................................................................................................................447S o il so lu tion s con ta in in g organic m atter , colorim etric d eterm ina­

tion o f n itrites in . W . A . S y m e .............................................................. 188Solub le arsenic in m ixtu res o f lead arsenate and lim e sulphur so lu ­

tions. C. E . B ra d ley ..................................................................................... 606Solu b le, fusib le, resinous con d en sation p roducts o f phenols and

form aldehydes. L. H . B aek elan d ........................................................... ‘ 545S olven ts, on th e u se o f in can d escen t lam ps w ith v o la t i le .r E . O.

T h o m a s.................................................................................................................. 4 0

S U B JE C T INDEX. 83-

defects in th e p ractice o i oiu p u i c - l sy stem and suggestedremedies. L ouis C. R aegen er ......................................................................201; in teresting p o in ts in th e m anufacture o f C. P. chemicals.T. T . B ak er ............................................................................................................ 464ish translation o f th e pharm acopoeia o f th e U . S. o f A 333ific g rav ity o f coal, rapid m ethod for the determ ination o f the.Abraham G. B lak eley and E d w . M. C han ce........................................ 812ific g ra v ity o f sem i-solid b itu m en s, a useful pycnom eter fordeterm ining the. P revost H u b b ard ..................................................... 475

/ chsaal K alender for th e Ceramic, G lass and Allied Industries.J. K oerncr (B ook) ............................................................................... 383, 680

; ih ility o f rosin a t s ligh tly e leva ted tem peratures. Chas. II.H erty and W . S. D ick so n ........................................................................... 6 8

' dardized sam ples. W . C. E baugh (E d .) .............................................. 63dardized sam ples ( N o t e ) ............................................................................ 269

' - dard m eth od s o f analysis. W . D . R icliardson ( E d .) .................. 5rch paper, p otassium -iod ide. C. G. S torm .......................................... 802

i'-i ch, a rapid m ethod o f hydrolyzing. George A . O lson .................445¿1 and the surface decarbonization o f pipe-annealed steel, the

form ation o f w hite scale on . Chas. Morris Joh n son ......................4591, a n ickel crucible for the determ ination of. H enry E. K.R uppcl, 184; copper-clad. W irt T assin .......................................... 670

■ ' 'I furnace, th e electric. W . R W h itn ey (E d .)............................... 641. rapid determ ination o f m anganese in. George A u c h y 813ly o f th e fa tty a d d s o f fish oils, A. L. M. T o lm an ..................... 340

’ lies in th e u ses o f finely d ivided silica. S . W . Parr, T. R.E rnest and W . S. W i l l i a m s . . . . ........................................................... 692

-com m ittees o f general com m ittees on standard spedficationsfor coals. A m erican S oc ie ty for T esting M aterials...........................386

T * it analysis, vo lum etric determ ination of copper in. E . B . H ol­lan d ................. 313

' " or. A H andbook for P lanters and R efiners. John A . R and Benj. E . R . N ew lands (B ook ). . . .

:ar in d u stry in its relations to . 1 :H orne (E d .) ....................................

■ gested standards for m aple suj :J r ...........................................................................................

. ¡'phites or sulphur dioxide in f- sulphurous acid. E d w , Guder ■

Jphur d ioxide in food products, dsu lphites or. E dw . G u d em an ..................

phur in 'coal, a com parison o f t of. S . W . Parr, W . F . W heel

liphur in fluorspar, barium and.- i/phur in gas, h ygien ic significan» ■ /

phuric acid, th e m easurem ent of ■•-fa c e decarbonization o f p ipc-a ' •

w hite scale on steel and the. eetened condensed m ilk, to determ ine rat in. v . a . Cochran. . . ¿vo ithesis, con stitu tion and uses of b akclite . L. H . B aekeland . . . 149

i ;tcm of records for the sd en tific work of a manufacturing pharm aceutical establishm ent. Frank R . E ldrcd................................ 372

• A B L E S of properties of over fifteen hundred common inorganicsub stan ces. W ilhelm Segerblom ............................................................ 482

d m ica l application o f titan ium , the. Isador L a d o ff.................... 642chnical C hem ists H andbook. Geo. F. Lunge (B ook)....................... 222chnical determ ination of caoutchouc in guayule. the. Chas. P.

F o x ........................................................................................................................ 7 3 5> chnical in stitu tion s to post-graduate stud y, th e attitude of. W m .

M cM urtrie.......................................................................................................... *96m perature corrections in the polarization of raw sugars and

other products upon quartz w edge saccharim eters. use of.C. A . B row n e.................................................................................................... 5 6 7

m perature o f kerosene and the explosion pressure of the super­n atan t m ixture o f air and vapor, the relation between the. W .P . B radley and C. F , H a le ........................................................................

IV m perature o f the lead b utton in cupellation. R obert II. B rad­ford ..........................................................................................................

•st for skin p ulp in tom ato catsup. H . W . Cowles, Jr. (N ote) »"’stin g and the Properties o f Sand Lim e Bricks, the. H . Bur-

chartz (B o o k )..................................................................................• e D etro it M eeting (E d .) ..................................................................................

e T estin g and th e Properties o f Sand Lime Bricks. H . Bur-chartz (B o o k ).......................................................................................

vteory o f fractional d istillation , the. Warren K . L ew is ............“I erm om eters, liquid m ixtures for m axim um and mini:

R obert E . B rad ley ........................................................................*s, concrete railw ay (Q u o t.)...................................................Uandsia usncoides. J . E . H alligan .....................................................

acture o f iod ine. A zor T h u rston .............................. ^ *

1814 4

3 8 3

T in p late, the d etection o f p in h oles in . W m . II. W a lk er ..................2VT itanium arc, the. Isador L adoff ......................................................... 7 <T itanium , the technical application of. Isador L ad off.................... . 6 ‘ 'T om ato catsup and other food products, th e determ ination o f b en ­

zoic a d d in. R odn ey M ott W e s t ........................................................... l ’>T om ato catsup, test for skin pulp in. H . W . Cowles, Jr. (N o te ) ., . iTonindustrie K alender, 1909. T onindustrie-Z eitung (B ook )............. 221T o determ ine fa t in sw eetened condensed m ilk. C. B . C o d ir a n ., 2<v T otal a d d , com position o f scuppernong; Concord and C ataw ba

grape ju ices, w ith som e n otes on the determ ination of. II.C. G ore .......................................................................................................... 4 V.

T ota l p otassiu m in soils, a rapid m ethod for th e d eterm ination of.O. M. S h ed d ....................................................................................................... 3 i-2

T o w hat ex ten t should college training confer practical cffidencyalong technical lines. L ouis M. D en n is ........................................... 1

Trade nam es as factors in industrial developm ent, p aten ts, tradesecrets and. W . II. S w enarton ............................................................... 1

Trade secrets and trade nam es as factors in in d u stria l d evd op m en t,p aten ts. W . H . S w enarton ....................................................................... 1

T urpentine adulterant, light n aph th a as a. R . H . A c o tt .................. 1'T urpentine and its adulterants. A rthur E . P a u l.................................... 'Turpentine, note on . A rthur E- P a u l...........................................................

U N G R O U N D cereals during storage, d ian ge in th e com position of.Sherm an L ea v itt an d J . A . LeC lerc........................................................

U n ited S tates p aten t system ; its u se and abuse. Dr. L . H . B aek e­la n d ........................................................................... ................................... .. 2 *H

U ntilled field o f chem istry . Arthur D . L it t le ........................................ . ’ - >U nusual incrustation on generator coils. C. H . E h ren feld 203U ranium and vanadium , vo lu m etric estim ation of. E d w . D e-

M illc Campbell and Chas. E . G riffin ...................................................... <U se o f pulverized fu el for h eatin g in d u stria l furnaces. R ichard

M eade............................................................................................................. 223em perature corrections in th e polarization o f raw sugars and er products upon quartz w edge saccharim eters. C. A .n vne........................................................... > . * • » . . 567

f b akclite , the synth esis , con stitu tion and. L. H . B aekeland i tcel Corporation for th e com m ercial sam pling and analysis_ron ores, th e m ethod o f the. J . M. Camp (N o te ) ............. •cadem y o f S c ien ce ........................................................ ............................o d e ty o f E n gin eers.................................................................................... 1 ‘

UM evaporation . P . B . S a d tler ........................................................‘on o f insolub le phosphoric acid in com m erdal fertilizers,

R . H . F a sh ......................................................................................... •> - -am and its estim ation, further rem arks on. Geo. A u c h y . . *

.* am , vo lu m etric estim ation of uranium and. E dw . D e ­le Campbell an d Chas. E . G riffin . ................................................ 6 Mextracts, lead num ber of. H . Louis Jackson and W m . T.

McGeorge. J r ......................................................................................................V ariation of m oisture con ten t in butter as show n b y different

m ethods o f sam pling. F loyd W . R ob ison ........................................ 3 i 'Varnish coatings as accelerators in th e corrosion o f m etals, p ain t

and. W m . II. W alker and W arren K . L ew is........................ ’4V inegar generator for laboratory use, a sim ple rapid process. II.

C. G ore.................................................................................................... • !V iscosity num bers (Engler) and flashing and burning p oin ts in

o il m ixtures, a com parison o f the calcu lated and determ ined.H . C. Sherm an, T . T . G ray and II. A. H am m erschlag.................. 13

V olatile com bustible m atter in coke and an th rad te , th e d eterm ina­tion of. Porter W . S h im er........................................................................

V o la tile m atter in th e m ineral con stitu en ts o f coal, th e am ount ofinert. W . B rinsm aid ................................................................................. ^

V olatile so lven ts, on th e use of in candescent lam ps w ith . E . O.T h o m a s................................................................................................................

V olum etric determ ination o f copper in sugar analysis. E- B .H o llan d ................................................................................................................

V olum etric estim ation o f uranium and vanadium . Edw . D e- M ille C am pbell and Chas. E- G riffin....................................................... -

W E S T E R N A ssod ation o f T echnical C hem ists and M etallurgists.th e ...........................................................................................................................

W h ite lead m anufacture, th e Carter process of. J. S. S ta u d t. . . . W h ite scale on stee l and th e surface decarbon ization o f p ip e-an ­

nealed steel, th e form ation of. Chas. Morris J o h n so n .................the determ ination o f to ta l, fixed and v o la tile a d d s in.

¡lius H o r tv e t..................................................................................................»reservative, A . N icholas K n igh t (N o te ) ....................................

y w d gh in g as sulphate, d eterm ination of. E ugene C. Sulan and W . C. T a y lo r ....................................................................... - • - :

ores, crude petroleum as a red u d n g agen t for. H arrison H ale 7 1 .