div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=variations-in-the-erythrocyte-potassium-and-sodium-in-the-possum-trichosurushtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Variations in the Erythrocyte Potassium and Sodium in the Possum Trichosurus vulpecula loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader031vdocumentsusreader031viewer20220204055750680d1a28ab0f07ae600ehtml5thumbnails1jpg width=140 height=200 divp© 1958 Nature Publishing Grouppdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imageimg data-url=variations-in-the-erythrocyte-potassium-and-sodium-in-the-possum-trichosurushtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: Variations in the Erythrocyte Potassium and Sodium in the Possum Trichosurus vulpecula loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader031vdocumentsusreader031viewer20220204055750680d1a28ab0f07ae600ehtml5thumbnails2jpg width=140 height=200 divp© 1958 Nature Publishing Grouppdiv