div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=visual-cells-of-the-guinea-pig-57995c556e055htmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Visual Cells of the Guinea Pig loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader031vdocumentsusreader031viewer2022020522575067f01a28ab0f07add9dfhtml5thumbnails1jpg width=140 height=200 divp© 1947 Nature Publishing Grouppdiv