div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=dr-l-r-farnellhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Dr L R Farnell loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader036vdocumentsinreader036viewer2022082617575067d01a28ab0f07ad4631html5thumbnails1jpg width=140 height=200 divp© 1934 Nature Publishing Grouppdiv