div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=prof-max-verwornhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Prof Max Verworn loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader031vdocumentspubreader031viewer2022020522575067b91a28ab0f07acdb37html5thumbnails1jpg width=140 height=200 divp© 1922 Nature Publishing Grouppdiv