div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=sir-john-gaddum-frshtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Sir John Gaddum FRS loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader037vdocumentssitereader037viewer20221004215750682e1a28ab0f07aef9d4html5thumbnails1jpg width=140 height=200 divp© 1965 Nature Publishing Grouppdiv