SECRETMUST NOT FALLINTO HANDS OP

ENEMY

MEMORIZE THIS GROUP:"DAM—Code Lost."

The

"COLORADO"CODE

GENERAL HEADQUARTERSAMERICAN EXPEDITIONARY

PORCES

This book has been issued

Jo

for official use under

his direction

only.

By COMMAND OF GENERAL PERSHING

!

Official :

ROBERT C. DAVIS,Adjutant General.

JAMES W. McANDREW,Chief of Staff.

INSTRUCTIONS1. This code book, to be known as the "Colorado" Code, is

issued to all combatant troops down to battalions.It is primarily intended for communication within the divi-

sion, but may be used for messages to higher headquarters.Messages encoded by its use may be transmitted by any

means at hand, but radio or earth telegraphy should be usedonly when more secret means are not available.

2. Messages once transmitted in clear or in any other codeor cipher must not be repeated in this code.

Messages once transmitted in this code must not be repeatedin any other code or cipher or in cle;ir.

Except that number and hour of signature may be in clearwhen preceding first code group, the use of "clear" in codemessages is prohibited.

.3. The use of this code for regular routine reports shouldIk- limited to actual necessities. Such reports should be trans-mitted by other means than radio or earth telegraphy.

4. Avoid use of words not in code book when other wordswith same significance are provided. Words spelled out, letter

by letter, not only take time to code, transmit and decode, butthey are one of the favorite points of attack by enemy codemen.

5. Where two or more code groups are assigned the sameletter, syllable, word or phrase, first one and then anothershould be used so that in a series of messages each occurs aboutthe same number of times. In particular, no group should everappear twice in the same message.

6. At least (me group marked "Null" should be used for

every ten code groups in a message. These should be placed at

irregular intervals. A "Null" should always occur betweendouble letters; thus the word "boot" would be encoded:

(b) (Null) (o) (t)

PSJ YWX XOG PFV SBY

.Vote that different groups are used for the letter "0."

7. Coded and decoded copies of messages must never be filed

together. All notes and memoranda used in coding or decodingmessages must always be destroyed, by burning, if practicable.

8. Messages must be short. Several short messages will beless likely to be read by the enemy than one long one.

Except in emergency, a long message, if it must be sent, will

be divided into two or more parts and each sent as a completemessage.

Very often the best way to handle a long message is to leave

out unnecessary words.

9. Addresses will not be used when context of message indi-

cates for whom intended. When used, thej' must he in code.

10. Signatures should be sent only when absolutely required.

When sent, they must he encoded, letter hy letter, if necessary.

Usually it will he sufficient to indicate origin by some word in

code book previously agreed upon by each commander and his

immediate subordinates.

11. The message handed Signal Corps operator should he in

the following form, on any suitable paper:

"No. 1. 15:40 PSJ YWX XOG PFV SBY

Send this message to First Division.

J. M.

1 June, 1918 Capt., 1st Infantry"

Items should always appear in this order, that is:

(a) Number of message.

(b) Hour of signature.

(c) Body of message.

(d) Order directing transmission.

Order directing transmission may also indicate means to be

tin ployed when deemed necessary by the Commanding Officer,

but this will, in general, be left to the discretion of the Signal

Corps.

Number of mes'sage and hour of signature should be given

only when they will serve some good purpose. They will be in

clear.

Body of message must he entirely in code.

12. Blank spaces at end of book are for use of divisions for

designation of organizations and local geographical points, or

for such other use as may be desired.

Words assigned will be reported to Corps, Army and General

Headquarters, and to neighboring divisions.

ENCODINGo.

.

1.

.

2. .

3. .

4. .

5. .

6. .

7. .

8. .

9. .

10. .

11. .

12. .

13. .

14. .

15. .

16. .

17. .

18. .

19. .

20. .

21. .

22. .

23. .

24. .

25. .

26. .

27. .

28. .

29. .

30. .

31. .

32. .

33. .

34. .

35. .

36. .

37. .

38. .

39. .

40. .

41. .

42. .

43. .

44. .

45. .

46. .

47. .

48. .

49. .

50. .

.FWP.

.KSU.

.NBX..YMJ..LPW..MCA..BFC..RPA..PWY..RBJ..FCV..JFU..VSY..BNA..QJC..GNU..RGS..JBK..OXW..BGR..YWU..NXO..PSA..GVJ..JWC..NPJ..PFJ.LYW.VPA.SMD.GFU..BKV.KBV.YPF.SNW.VJC..ABW.RWB.NGA.JPL.DYW.

.

.VSA

.JSC

.NBL

.CUY

.XJG.

.

.GNA,RMY.APBYBMMGI. .

.OCM

.RYV.

.JPS.SPF..GKX,.FBL..MYV..CPS..JXW.QYA.GBL.ZBW.NYK.CFX.PLB.SGA.NSV.DGA.RBY.DPL.XJM.BPG.SCO.KXO.NFC.QMX

CMX

MGX

RKC

WCA

DCA

.DMA

.AGL

.DSK.PCB.QBG.KPW.OMJ.MSG.GSC.NGW.DCM.XPO.CJF.DWA.NWJ.XBC.GNP.KXY.XYM.RFY.OWY• QPJ.FGN.OPB.MBC

4.2. . .XFO4.7. . .PEB5.9. . .GLO6-inch. . .JOB9 . 2 ... SAN9.45. . .WUM9.5. . .LYT155. . .COM240. . .AMG

A. . .YPO. .RFS. .GKO. .XPAAbandon . . . RABAble. . .GOSAbout . . . CMAAbout to advance. . .PUFAbove. . .KPL-ac. . .FATAccident. . .ROKAccidentally wounded. . .XUOAccording. . .DONAccurate. . .LEMAcknowledge. . . JOKAct. . .SADAction. . .PBOActive. . .GESActivity. . .VOW. .GOCAdjoining. . .MSYAdjust. . .SUCAdjusting. . .NORAdjutant. . .JWAAdvance. . .VAPAdvance guard. . .BEFAdvancing. . .FXO. .LGAAdvantage. . .VMSAdvisable. . .POKAdvise. . .MEN. .PYNAdvise when completed. . .CSMAdvised. . .FJSAeroplane. . .GUK Nulls:After... NEP REDAfternoon. . .OWG APXAgain... RYF MYSAgainst. . .WNO OBNAge...KBA XOGAgree. . .FMYAim. . .OLPAir. . .ZVC

-al. . .JAPAlert. . .FEDAll. . .LPA. .YJB. .VXSAll communications cut...GFKAll points. . .FPNAll ready. . .BPUAll returned. . .DELAll right. . .JGVAll stations. . .OSAAll well. . .QXGAll your messages received. . .DEBAlone. . .KVSAlong. . .PJMAlso. . .JYMAlter. . .SONAltogether. . .WMVAlways. . .DWSAm. . .FMB. .NCW. .QMJAm not. . .XMCAmbulance. . .CPKAmmunition. . .BFW. .CSY. .VBAAmmunition depot... PBXAmmunition exhausted. . .FGCAmmunition for. . .GWK. .RMJAmong . . . GPVAn. . .ASF. .GSX. .YMS. .JSY-ance. . .OKUAnd. . . JUM. .OLD. .ROT. .GOK. .COGAngle. . .FCBAnnounce . . . SWOAnnoy... XON Nulls:Answer. . .DAL. .BOK DGW-ant...SMY BNCAntenna. . .FRM QVKAnti-aircraft. . .GAV COFAny . . . LBC YUXApparatus. . .VPOApparent. . .FLOAppear. . .REPApproach. . .GKBApprove. . .SYLApproximate. . .WBMApproximately. . .CUN. .AGBApril. . .YXW-ar. . .JOVAre. . .FGW. .BNX. .MJV

-com.

Are having. . .PAT

Bivouac. . .VSG

Combat. . .KVF

Demolish. . .MARDepot. . .WACDepth. . .RGXDesert. . .MEWDeserter. . .APUDesire. . . JXSDestroy. . .PJADestroyed. . .DAN. .MEX. .WAYDestruction. . .REFDetach. . .MGODetachment. . .CUGDetail. . .AFVDetails by runner... FSCDetect. . .YFBDetonator. . .WYKDevelop. . .CSPDid. . .XUB. .QYFDid not. . .GWODifficult. . .BFP Nulls:Dig...GXS DGWDigging. . .PWU BNCDiminish. . .WNS QVKDirect... DUB COFDirection. . .OXP YUX-dis. . .YAL. .FESDisable. . .SOWDisorder. . .GOTDispatch. . .MPVDistinct. . .POWDistinguish. . .FELDistribute. . .AWBDisturb. . .RMSDivide. . .WBPDivision. . .GNO. .CUTDivision headquarters. . .PCU. .BWPDo. . .BGY. .FWMDo not. . .WPR. .RBODo not understand. . .MPBDoctor. . .FYKDoes. . .VNU. .SPLDoes not. . .NUVDoing. . .ASMDouble. . .CBUDoubt. . .KMODown . . . RWS . . XUYDressing station. . .DMP

Drive. . .LGSDriven back. . .QEFDriven out...SYV Nulls:Drop...M0N PJVDrum-fire. . .POF FWYDuckboard. . .BNG VSXDug-out. . .SCB GFYDummy . . . WMO PXMDump . . . MCPDuring. . .VAT. .SPX. .LOVDuring the night ... FBO .. AFDDuty . . . WSCDynamite. . .YPXE. . .CBM. .GWY. .PNG. .SWC. .XFB-ea. . .FLJEarly. . .BPYEarth. . .KGXEast . . . VSMEast of. . .SMA-ed. . .KMC. .VBO. .XWSEffect. . .MBXEffective. . .NATEighth. . .WCO-el. . .RWY. .JYB. .BMVEmplacement. . .GUB. .MUC-en. . .NWY. .RPO. .SGR-ence. . .PAMEncounter; . .JSPEnd. . .SUREnemy. . .NYM. .GFX. .ASY. .XPJEnemy advance . . . NXSEnemy artillery .. .GPAEnemy attack. . .WSOEnemy barrage. . .PEWEnemy being reinforced. . .FPXEnemy constructing. . .ORAEnemy counter-fire. . .CMSEnemy field artillery .. .GWBEnemy firing gas grenades. . .VXFEnemy has established. . . JWOEnemy has lost heavily. . .BUSEnemy has occupied. . .OWBEnemy has penetrated. . .GUTEnemy heavy artillery .. .OGKEnemy infantry .. .RUCEnemy is bringing up...GLB

-com. . .PX3. .JWY-con. . .PNR. .FSM•dis. . .YAL. .FES-ed. . .VBO. .KMC. .XWS

-en. . .RPO. .NWY. .SGR-er. . .JBM. .FBS. .AWG-es. . .XBW. .SPU. .GSO-ing. . .NPY. .FWA. .OEM

Enemy light artillery...

For the. . .APOForce. . .FXB. .VMAForcing. . .YSVForeseen . . . JYF Mulls

:

Fortify. . .DUC C-WS

Forward. . .BEK PNWFourth... XAC APXFrench. . .QEP. .AFC OBNFrench 75 mm LAD QVKFrequent. . .JWPFresh. . .RFAFriday. . .GSJFrom. ..SUP. .DOV. .RYGFrom the. . .FYVFront. . .XFA..S0BFront line. . .OBUFront of. . .JES-ful. . .ASX. .YSPFullerphone. . .LACFurther. . .BAM. .XYBFurther details follow... OXAFuse . . . NFOG. . .MAW. .LEP. .RUXGain. . .NFPGas. . .PSM. .WPB. .ZVB. .OKGGas alarm. . .KPGGas asphyxiating. . .OSMGas attack. . .VEB. .XOPGas battery. . .WBXGas cloud. . .QVSGas defense. . .LOMGas grenade . . . FRKGas is being blown back. . .KMAGas shell. . .PUB .

Gassed. . . JSO. .AMO. .WXBGeneral. . .ZVA. .RPNGerman. . .XOY. .LOWGet. . .QVA. .MPJGet in touch. . .BFMGet ready . . . MBPGive. . .LPOGlasses. . .WYXGo . . . BENGoing. . .JEPGone . .

.QAP

Good. . .BYN

Gray . . . FADGreat. . .NOW. .BETGreat activity. . .NXGGreen. . .JOGGreen rocket. . .VSFGrenade. . .RYW. .QYMGround. . .MUDGroup. . .ASBGuard. . .QEBGun. . .VMY..LPUGunner . . . AWEGuns. . .DXOH. . .PXB. .MQ£ .APF. .NBO-ha. . .GXHad. . .GON. .ROPHad not . . . OGWHalf. . .JFPHalt. . .SOLHand. . .LEW...W0YHand grenade . . . SKYHang . . . POBHaopen . . . NPCHard. . .OPSHas. . .YFL. .ZOS. .AXMHas arrived. . .GAPHas been. . .NCSHas destroyed. . .XGAHas had. . .WARHas not.. .QYP. .NGBHas not arrived. . .BKJHas not been . . . CBYHas stopoed. . .BUDHave. . .PXO. .JGX. .DWUHave arrived. . .GLJHave been . . . VNFHave established. . .KPBHave left. . .AMKHave lost. . .YUJHave not. . .PUM. .AUBHave not arrived. . .YSCHave not been...JB0Have taken. . .MPCHave you . . . SWXHave you received. .

.

Having. . .ONA. .KSBHe. . .GOM. .YAM. .RES

Nulls:YUXFWYPXMLAYROB

-com.

Head. . .PBUHeadquarters. . .YWO. . .WSP. .RFOHear. . .YOUHeavily. . .CAFHeavy.. .DWC. .NGS. .JYKHeavy artillery. . .FRPHeavy loss. . .QMCHeight... XPN Nulls:Held...YWS GNWHeld up. . .NOT JYLHeliograph. ..QJB DUPHelmets. . .NWB OWNHelp...RG0 PAY

e . ..QYB

High. . .ABGHigh explosive shells... ZASHill. . .GYL

. . .FAV. .NOXHis. ..XFP..VYSHit . . . SGKHold. . .CPMholding. . .PWBHole.. .NACHospital. . .DAKHostile.. .GYB. .QJXhot. ..WUAHotchkiss machine gun...PBYHour. . .NOC. .YOLHouse. . .XUFHow . . . SMX . .

QXY . . ZBXHow is everything. . .CMYHow much. . . JFMHowitzer. . .LYK. .PXGHundred. . .BGO. .GPSHungry . . . NAVHurry. . .LUPHyphen . . . RPBI. ..NOM. .GEW. .RAC. .XUSI am .

.". OBGI have. . .NUMI will. . .BGX-ic. . .DMU-ied. . .ABO-ies. . .JFKIf. . .MSU. .QAB. .PXAIgnite. . .FCW

-ion. . .NOG. .DAW. .OVA-ly. . .JFY. .GFP-nd. . .MXA. .ANP. .NWP-nt.. .OFL

111.-. .OXG. .FWJ111 uminat ing . GOD

. .MGW. .PYV;diate. . .F^Kdiately. . .GYP. .CMK. . JGOrtant. . .CPY

Impossible. . .YACIn; . .XOV. .QMO. .YOJ. .LPD. .WSV

clear. . .POTIn code. . .MGP1 communication with...FETIn conjunction with. . .PNUIn detail. . .OBC

"' emy ' s hands . . . GLV

.

In force. . .SBL. .VBMIn front. . .XGWI i general . . .CPL] n No Man's Land. . .GSU

order. . .FSPIn our hands... SAT Nulls:

i cur trenches. . .VCW VBYIn place. ...RFM WJSIn progress. . .XGK LUWIn reserve. . .BKP REDIn succession. . .DXY YXOIn support. . . JBCIn the . . . OXV

the direction of...SWJIn touch with. . .DEGIn writing. . .ROSIn your . . . ZBPIncendiary. . ..ABF

Inch. . .DYV. .SWMincrease. . .CSV. .GSDIncrease range*. . .WJGIndicate. . .SNFIndication. . .PLUInfantry. . .MEV.-.QOB. .DES

antry patrol... GSAInform. . .LEV

ormation. . . JPCInformed. . .BGWing. . .FWA. .NPY. .QEMInjure. . .DOMInspect. . . JGSInstantaneous. . .WUJ

-re. . .QVC. .RWU-s. . .0M3. .DPG. .ASV. .LYN-st . . . GMC . . SXM . . BPA

.

'. PWJ-th. . .KMS. .NFW. .PLX

Intend. . .AMCInstructions. . .MJA. .NCFIntact. . .PYMIntelligence. . .ROXIntense. . .QOJInterrupt. . .SWBIntercept. . .DCPInterval. . .WUSInto. . .RMO. .YJSInto action. . .NFLInvisible. . .FOB-ion. . .NOG. .OVA. .DAW-ir. . .ANDIrregular. . .PUSIs. . .COX. .JAM. .REG. .NUTIs being. . .FMVIs having. . .BOFIs not . . . GYWIs there any gas...V0R-ish. . .QXJ-ist. . .OVMIt. . .NBY. .FCK. .SXGItalian. . .AFR-ite. . .DOB-ive. . .MPX-ize...JUL Nulls:J...VEG..S0X BNCJanuary . . . PNC PJVJoined... YSM..SCU VSXJudge . . . PAD COFJuly...V0P XAVJunction. . .ANGJune. . .CAWK.. .JMX. .VPL. .LBSKeep. . .REV. .PEGKeep in touch... GOXKey . . . PWMKill. . .MADKilled. . .FCX. .GYK. .PJY. .VCOKilometer (s) . . .SYFKnife (ves) . . .WMJKnow. . .WAS. .GOVL. . .JAG. .WUC. .SOP. .ANYLachrymatory. . .CFMLack. . .DOKLaid. . .JGP

Lamp . . . KVXLarge. . .GLP. .DPK. .FYWLarge caliber .. .COSLast. . .NCVLast night. . .FEG. .PEVLate . . . GYVLater. . .MSX-le. . .LUK. .PNOLead. . .NXVLeast . . . FBULeave. . .SAM. .BUMLeave behind. . .GASLed... GXP .

Left. . .KSJ. .NCXLength. . .QOP. .ROCLengthen. . .VCU. .XYWLengthen range... QXVLess . . . FUC . . JABLet. . .KVMLewis machine gun. . .MUTLiaison. . .ABXLieutenant. . .YBS. .WBJLift. . .SNX. .RFGLift barrage. . .PENLight. . .MOFLight artillery. . .FCPLight signal... MUNLimber. . .ANFLiquid fire. . .DXMLine. . .FJWLines. . .MSO. .VPGLines of communication. . .RFWListen. . .JUKListening post. . .BNMLively. . .LGF-LI. . ,YXA. .GVCLoad. . .BOPLocal... GXV Nulls:Locality. . .FMC XOBLocate . . . BNP XWOLocation. . .MES AUSLong...SBA MYSLonger... MEP XOGLook . . . FSDLook out. . .MUPLpophole. . .VCJ

-com.

Lose. . .AWCLoss . . . YXBLosses. . .VOD. .QOV. .NASLost. . .JFBLower. . .FXW. .ASO-ly. . .GFP. .JFYM. . .BNS. .CFO. .jbsMachine gun...QMVMachine gun ammunition. . .SULMachine gun company. . .WPNMachine gun emplacement .. .VSPMachine gun fire...Y0XMachine gun nest. . .XOKMade . . . ROGMagazine. . .SCPMain. . .YUMMain trench ZBCMajor. . .XMS. .ABKMake. . .AXS. .DSMMake bombing attack. . .OSDMake gas attack. . .ZABMake ready. . .XJOMaking... WYM Nulls:Man . . . MYF SKPMany. . .JWB. .CJB DGWMap . . . LOG GFYMarch. . .BXY. .GFA WYSMarked... BAP DOCMarl in. . .GEPMask . . . YXZMass. . .XUJMassed formation. . .FWOMat . . . DGFMaterial. . .DOPMaterial not arrived. . .BAGMay. . .YXV. .RPYMay be . . . SBOMay not. . .RAWMe . . . BAF . . NAGMean . . . LPFMeaning. . .YXMMedical. . .OXBMeet. . .DABMen. . .JBW. .PSO. .YSB. .WUOMen gassed. . .XJC. .SGV. .ABSMen killed. . .JOC. .YUP. .WOL

Men missing. . .LUB. .PUG. .NEWMen wounded. . .LPN. .VPS. .SCW-ment . . .XJBMessage . . . ABP . . KMG . . YXPMessage not understood. . .ROWMessage received. . .QSCMessage understood. . .SCK:'sssenger. . .NUG'let . . . OC

J

Meter (s) . . .GNSMiddle... BPJ Nulls:Midnight. . .BAW PXMMight...DMS GFYMight be . . . GAM VSXMight not. . .JFW FWYMile (s)...BAT PJVMillimeter (s) . . . JGLMine . . . NESMine crater... YAVMinenwerfer. . .VXYMinus . . . SWPMinute. . .ROM. .PEK. .LUNMiss . . . FPEMissing. . .CPG. . JMY. .XWBMist . . . VYLMistake . . . AMS-mm. . .MOL. .DUWMobile. . .GBM

ilize. . . JG3Model. . .WEGModerate. . .SMKMoment . . . KBOMonday . . . LANMop . . . FAPMorale. . .KGBMore. . .QBA. .YMA. .GKJMorning. . .BMY. .FGO. .LBJMortar. . .YOB. .FANMortar fire. . .DCJMost. . .MGLMost of. . .LOXMotor. . .DCSMotor truck. . .FSJMount . . . MBOMove . . . PJSMovement. . .NPW

-ion.

Moving . . . PCK

On hand. . .GXMOn the . .

.QBF

On the left...DWOOn tne ower siue...CJMOn the right. . .MYPOn the way . . . RYBOn this. . .YWM Nulls:On this side. . .WOV WYSOn time. . .VSJ PAYOne. . .WCF. .XGF GNWOnly. . .YJA ROBOpen...XSC LAYOpen fire. . .SNAOperate. . .YPVOperation. . .XGPOperation cancelled. . .VXBOperator. . .SYNOpposite. . .VSD. .SMCOr. . .NPB. .XGV. .CPVOrder. . .FLYOrdnance . . . QJSOrganization. . .YMVOrganize. . .XSY. .WSJOriginal. . .VSOOther. . .OGL. .VAW-ou. ..XGOOught . .

.QMP

Ought not . . . NAMOught to . . . SUKOur. . .YPS. .WAX. .POGOur advance. . .NPUOur aeroplane. . .YPMOur artillery. . .WYFOur artillery is firing... SYPOur artillery is shelling us...Our aviator. . .SNB ^SPAOur center. . .YPKOur communications. . .DPYOur first line. . .NEMOur front. . .POYOur infantry. .

.QPF

Our left. . .NSYOur machine gun...MYBOur men. . .LOCOur right. . .KXMOur wire. . .KGR

Our wire is cut...LBP-ous. . .YFPOut...XWM. .WYV. .DUMOut of. . .NCOOut of range . . . OWXOutpost . . . PYSOutpost company. . .QAFOver. . .ONP. .MUKOverwhelm. . .MEKOwn . . . JSBP...JEB. .RYL. .VOYFair. . .YOWPanic. . .XWUParachute . . . WAJParallel. . .XFWParapet. . .WOSParol e...VEPPart . . . SPGPartially. . .OXYParties. . .OCP. .NFV. .DXPParty. . .DAY. .FRY. .YOPParty all in. . .XOWPass . . . WMCPassed. . .SUNPassed quietly. . .RKV. .OSVPatrol. . .NUP. .OSY. .VJPPatrol reports ... SWY .. RKOPatrol schedule. . .PYLPenetrated. . .MBJPercussion.

.

.CSXPerfect. . .BPNPeriod. . .BKY. .AXV. .YPG. .OMX.

.

Periscope. . .ORB .VNXPersonal. . .YFSPhone... NWA Nulls:Photo... OLJ YUXPick... MAG COFPicket... CSG QVKPiece... AGY BMCPigeon... BXK DGWPistol. . .DEVPistol ammunition. . .FUMPlace . . . FOM . . JARPlaced. . .SAGPlane . . . RGNPlatoon. . .RGP. .OBP. .CPW

-ion.

Plus. . .DWBPoint. . .CUB. .AGEPoor. . .YFWPosition. . .SYW. .GVOPossession. . .CJPPossible (y) . . .AWYPost. . .YPB. .RWCPost of command. . .RKBPostpone. . .RAPPostponed. . .YFXPound. . .JWMPremature. . .DXBPreparation. . .AGOPrepare. . .MOP. .JOLPresent. . .MXVPress. . .JEXPrevent. . .AWKPrevented. . .BMAPrisoner. . CUK. .FUKPrivate. . .GBA. .MEF-pro. . .PFAProbable. . .YMPProbably. . .WSA. .SKXProceed. . .VNP Nulls:Progress. . .QVO GWSProjectile. . .JXO AUSProportion. . .GSM XOBPrussian. . .AGK VBYQ . . . OGP . . MBY SKP-qu. . .YMBQuarter. . .XMWQuartermaster. . .VXGQuestion. . .PUTQuestion mark. . .GNB. .AXGQuick. . .YAP. .Q 1??. .GOPQuicken. . .ONXQuiet. . .PCX. .ONW. .OPXQuiet day. . .DOW. .NABQuote. . .MBWR. . .MXB. .KGP. .OWU. .NWXRadio. . .LEB. .MOW. .FURRadio message. . .ORKRadio operator .. .PFRRaid. . .KPS. .MXO. .YJC. .XBARaid will take place. VMJ.SXP.RBWRaiders. . .LEG

Railroad. . .WXMRain. . .DGVRaise. . .SPNRange. . .AUP. .MYWRapid. . .RWORaoid fire. . .XAMRate . . . SUYRations. . .RWK. .QSJ. .OWC-rd. . .PEN. .OMA-re. . .RWU. .QVC Nulls:Reach . . . NWC DU?Reached . . . KVA . . KB5 JYLReady. . .JUS. .GPJ DOCReady for attack. . .PFC OWNRear . . . AWP . . VJX XAVRearguard. . .CUSRecall. . .VAFRecall working parties. . .COPReceive. . .RMVReceived. . .WMS. .DAP. .RYNRecognize. . .DPBReconnaissance. . .OSCReconnoiter. . .DXAReconnoitering. . .PJC. .CMGRed. . .GUNRed rocket. . .XYGRed star shell... DEMRefer. . .WEVRegiment. . .QXO. .WJA. .DYMRegimental. . .MPSRegimental headquarters. . .XFJ.

.

Region... SAW !BM0Registration. . .CUXRegular. . .OKYRegulate. . .DUKReinforce. . .OCW. .DPOReinforced. . .0GB. .BWDReinforcements. . .BOW. .BYP. . JEFReinforcements arrived. . .LAMReinforcements sent . . .DMK. .FWXRelease. . .PCSReleased. . .FRGRelief. . .OWA. .QJP. .FYGRelief completed. . .JYS. .CBGRelief has arrived. . .GADRelief will take place. .OLX.CFB

-com.

Relieve. . .BLORelieved. . .YBCRelieving. . .BUWRemain... LBW Nulls:Remainder . . . KSO LUWRemove . . . JPO PNWRemoved. . .VEM WJSRenew. . .BPS. .CFV YXORenewed. . .FXU XWOReoccupied. . .RBMkeoccupy. . .BPXRepair. . .CAMRepeat. . .NBV. .BYSRepel. . .OKPReply. . .VAM. .SPYReDly at once... CARReport. . .DIF. .SKB. .SYB. .KMUReport condition trenches. . .BUGReport in person. . .BLYRepulsed. . .FXMRequest. . .MCB. .XPCRequest reinforcements. . .OVSRequire. . .ORW. .BFURequired. . .CBS. .FPSRescue. . .JYXReserve. . .LBM. .RBAResist. . .VOKResistance. . .WNCRest. . .XBL. .VYFRestore. . .BLGRestored. . .KPNResult. . .NYW. .NFYRetake. . .BEDRetaliate. . .OCARetire. . .BSC. . .KBXRetreat. . .WMYReturn. . .BSOReturned. . .NGK. .BSX. .NYGRevetting. . .BWORidge... OMSRifle. . .RAV. .BXPRifle grenade ... JMPRight. . .VPX. .BWXRiver. . .RGURoad. . .MAP. .BONRocket. . .NCB

Rope . ..QVG

Round. . .YJM. .BYDRunner. . .YJPRush. . .LES. .BSM. .YPA. .KXB-ry.. .YMOS. . .AIM. .GUM. .NYV. .RUM-s. . .LYN. .ASV. .DPG. .0MB

' s . . . YABSafe. . .YJVSafety. . .MCSSalient. . .YJXSandbag. . .CUWSanitary. . .YMXSapper... KPX Nulls:Satisfactory. . .YMC WYSSaturday. ..VAN PAYSaw...SGB GNWSaxon . . . KBG ROBSchneider. . .JVB • LAYScout. . .YFJScouting. . .WPOScrew stakes. . .XAPSearch. . .WMPSearchlight. . .OGVSecond. . .JOR. .JMCSecond line. . .GWCSecret. . .BNKSection. . .ANS. .GXFSector. . .KMP. .JWX. .WPYSee . . . YBOSeen. . .XSKSelf. . .GKYSend. . .XSP. .OBK. .YFA. .XMASend at once. . .GUFSend by. . .NXFSend out patrols. . .YBA. .SNPSend reinforcements. . .BKCSend up . . . GMU . . XSD . . WBVSend up ammunition. . .KPASending. ..QEK. .VMOSending out patrols. . .GUWSent . . . YBJSending up . . . FGBSentry. . .FLU. .YFGSeptember. . .XSUSergeant. . .FJP. .XUN

-ion. . .NOG. .DAW. .OVA-ly. ..GFP. .JFY-nd. . .ANP. .NWP. .MXAnt. . .OPL

-re. . .RWU. .QVC-s. . .DPG. .ASV. .LYN. .0MB-St. . .GMC. .PWJ. .BPA. .SXM-th. . .NFW. .PLX. .KMS

17

Serious. . .FOR. .YBX

Success. . .NXYSuccessful. . .MXGSudden . . . JVNSuffer. . .KSXSuffocate. . .JWKSun . . . GFSSunday . . . GWMSuperior. . .BEVSupplies. . .BNW. .FXJ. .GBKSupply. . .COKSupply train. . .DEFSupport. . .FAM. .CUP. .DAGSupported. . .OPYSurface. . .NWUSurprise. . .MBU. .JPKSurrounded. . .FPWSuspect. . .FBJSweep . . . RBXT. . .SBY. .SXV. .VMX. .XMDTake.. .JOW. .GKMTake place. . .BLD. .AXBTaken. . .GWX. .OPCTank. . .NGL. .OVYTarget. . .VCSTear . . WCUTelegraph. . .XSM. .XJWTelephone. . .CJS. .DSBTell. . .FSYTemporary. . .FGUTenth. . .MOSTest. . .PJB-th. . .KMS. .NFW. .PLX-tha. . .NWO. .LGVThan . . . JYPThat. . .FGX. .GBUThe. . .DIW. .GBY. .BMXThe same . . . CAXTheir. . .DGMThem. . .DYLThen . . . FGLThere. . .GUV. .JSA•These. . .0KB. .OVBThey . . . PYBThick. . .QXMThicken barrage. . .RENThin. . .RMC

Nulls:J

Trench mortar ammunition. . .WNGTrenches. . .SOG. .RBP. .PNYTriangle. . .OPVTroop . . . NYF . . KMDTroops. . . JPU. .BLX; .BSUTrouble. . .CBJTruck... DYP Nulls:True . . . FMO XOB-U...PJ0 SKPTuesday . . . OGF AUSTurn . . . GWA VBYTurned over. . .FUP GWS-ty. . .FARType. . .BOXU. . .FPB. .JXV. .QVB. .WJY. .WBO-un. . .SOR. .VNWUnable. . .KPF. .FMXUnable to. . .FAYUnable to send. . .AGNUnchanged. . .BXL. .DMCUndecipherable. . .CJYUnder. . .KMX.-.VPN. .WEPUnder fire. . .SMGUnderstand . . . GFC . . BAVUnderstood. . .FBP. .VASUndertake . . . FCMUnfavorable. . .XAY. .FXSUniform. . .WABUnit. . .BGPUnless. . .FSV. .WPUUnsuccessful. . .FOLUntil. . .XBSUnusual. . .GAWUp. . .BGF. .FRW. .VXWUrgent. . .BWM. .LBYUrgently. . .WJC. .KBFUs . . . WJMUse . . . BMJUseless. . .LGXUsing. . .WXAUsual. . .KBLV. . .BWS. .KXW. .WPJVain . . . JXAValley. . .BAXV. B. ammunition. . .WJVV. B. rocket. . .BNY

Velocity of wind...KSPVery. . .VYPVery pistol. . .WMXVicker's machine gun. . .KVPVillage. . .XFSViolent. . .GVXVisibility. . .BUFVisible. . .JPMVisual. . .VXM. .JYWW. . .WXY. .RBV. .LGPWagon . . . CAVWait. . .SBW. .JFRWant. . .RPSWarn. . .GMPWarning. . .CBPWarning has been received. .QVPWas. . .PAC. .ORG. .BYFWas not. . .DSP. .FPYWatch. . .KVDWater. . .MJO. .OXSWave . .

. QSGWay. . .VOCWe. . .VYK. .CBN. .FYLWe are. . .OSPWe are held up. . .QVYWe are in need of . . . SNYWe are losing heavily. . .WBSWe hold the line. . .VOMWe were. . .SXO Nulls:Weak . . . SOK FWYWear . . . SBP YUXWeather . . . RMP . . OPN PJVWeather conditions. . .JUD VSXWednesday. . .KXG GFYWeek. . .JBAWell. . .GKC. .FJBWent . . . RFVWere. . .BKO. .RWX. .BXGWere not. . .FOPWest. . .FAGWest of. . .BYVWet. . .CMUWhat. . .DYG. .VNS. .SGPWhat is. . .NSOWhat is the matter... OVCWhat is the parole. . .FLM

-com.

What is the position. . .DPMWhat is the situation. . .DXVWhen. . .BUP. .DWX. .FJXWhen shall we be relieved. . .WAMWhere. . .VPU. .SAY. .QSAWhere are your headquarters. .FBNWhether. . .PBW. .FGRWhich . . . OLC . . FMA Nulls

:

While... OKM MYSWhite... FAV XOGWhite rocket. . .OMY OBNWho. . .FCS. .BPF REDWhole...MPW APXWhy. . .OWE. .RGF. .SWUWide. . .VBPWidth. . .QPVWill. ..0CF..RWP. .MCF..NEGWill be. . .BMC. .CAK. .OCX. .SBJWill be made. . .RFXWill be relieved. . .APW. .PFOWill begin. . .BKS. .NETWill lift. . .MYKWill not. . .BPO. .GAK. .XFCWill open fire. . .CFSWill proceed. . .JMUWill signal by. . .XMOWill take place. . .WXS. .GUPWind. . .SCFWind favorable . . . NFB . . RGW-Wing. . .BPWWinged bomb. . .DYBWire. . .BSA. .KVY. .PESWire entanglements. . !BWYWireless. . .KGWWireless out of commission. . .JXYWireless station. . .BXSWiring party. . .GEKWith. . .PEF. .RAT. .SACWithdraw. ..JVY..NXPWithin. . .ORP. .PCWWithin range. . .QXBWithout. . .NFX. .RUTWithout artillery preparation. .

.

Without delay. . .BXO CSKWood. . .CFWWork. . .BYK

Working. . .CJWWorking party. . .RAN. .RUGWould. . .RBC. .CMB. .DEWWould be. . .FACWould not. . .OWSWounded. . .OBW. .RBL. .VPB. .WNVWriting. . .FYBWritten. . .RPJ Nulls:X. . .DGP. .FGK. .RKP OWNY. . .0WL..F0W. .QEX DOCYard...KG0 DUPYellow... JVO JYLYellow rocket. . .GMJ XAVYes. . .BOV. .DPV. .FBX. .FUWYesterday. . .FPLYet. . .GEB. .FSAYou.. .ONY. .PSX. .SGMYou will be relieved. . .SOM. .SXYYour. . .VBW. .VNK. .ONG. .WNPYour company. . .VXA. .WUPYour men .. . . FEVYour position. . .ONVYour sector... SPBZ. ..OPJ. .VPY..SGXZero. . .WBYZero hour. . .WXO. .SPOZero hour has been postponed. VBCZone. . .RFP

ASPBKXBWGCAPCMPDEKDPCDSYFGAFGYFPOFWSGFOGNXJFXJPXKGAKPV

-ion.

LAV~G0NBWNGXOBROLUOVPPARPLJRAKRKYSOVSUB3UGSUWSYGVAGVCFVEF

VJMVMBVXPVYBWBLWCPWCXWEFXPLXBJMBAMSFJAK

BAK.

BPN.

CJF.

DGF.

DYW.

FPC.

GEP.

GVJ.

JOF.

KGU.

LOK.

MOG.

NFC. .

OCJ.

OWY.

PSB.

QPM..

RKC.

scu.

SYM.

VSF.

WOM.

XJM. .

YFO ... OfYFP. . .-ousYFS. . .PersonalYFV. . .CableYFW. . .PoorYFX. . .PostponedYJA. ..OnlyYJB. . .AllYJC. ..RaidYJM. . .RoundYJO. . .DefiniteYJP. . .RunnerYJS. . .IntoYJV. . .SafeYJW. ..ArtilleryYJX. . .-SalientYMA . . . MoreYMB.. .-quYMC. . .SatisfactoryYMJ . . . 3YMO. . .-ryYMP. . .ProbableYMS. . .AnYMV. . .OrganizationYMX. . .SanitaryYOB. . .MortarYOC. . .CompletelyYOJ. . .InYOL. . .HourYON. . .AtYOP. . .PartyYOU. . .Hear,Y0W. ..PairYOX. . .Machine gun fireYPA . . . RushYPB. . .PostYPF ... 33YPG. . .PeriodYPK. . .Our centerYPL. . .HasYPM...0ur aeroplaneYPO . . .

A

YPS . . . OurYPV.. .OperateYPW. . .ObserveYPX. . .DynamiteYSA. . .NothingYSB. . .MenYSC...Have not arrivedYSJ. . .At point

YSM.