div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imagea href=https:reader030fdocumentsnetreader030viewer2022020522575067bf1a28ab0f07acf662html5page1jpg target=_blank img data-url=documentsir-william-fletcher-barrett-frs-57984b39943eahtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: Sir William Fletcher Barrett FRS loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader030fdocumentsnetreader030viewer2022020522575067bf1a28ab0f07acf662html5thumbnails1jpg width=140 height=200 adivp© 1925 Nature Publishing Grouppdiv