div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imagea href=https:reader042fdocumentpubreader042viewer20220205225750678e1a28ab0f07ac13ebhtml5page1jpg target=_blank img data-url=documentaurora-57966182b1e4ahtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: Aurora loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader042fdocumentpubreader042viewer20220205225750678e1a28ab0f07ac13ebhtml5thumbnails1jpg width=140 height=200 adivp© 1882 Nature Publishing Grouppdiv