div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader043vdocumentsusreader043viewer2022020522575067c51a28ab0f07ad1071html5page1jpg target=_blank img data-url=the-ultra-violet-light-of-the-sun-as-the-origin-of-aurorae-and-magnetic-storms-57989afe15f2bhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: The Ultra-Violet Light of the Sun as the Origin of Auroræ and Magnetic Storms loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader043vdocumentsusreader043viewer2022020522575067c51a28ab0f07ad1071html5thumbnails1jpg width=140 height=200 adivp© 1928 Nature Publishing Grouppdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imagea href=https:reader043vdocumentsusreader043viewer2022020522575067c51a28ab0f07ad1071html5page2jpg target=_blank img data-url=the-ultra-violet-light-of-the-sun-as-the-origin-of-aurorae-and-magnetic-storms-57989afe15f2bhtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: The Ultra-Violet Light of the Sun as the Origin of Auroræ and Magnetic Storms loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader043vdocumentsusreader043viewer2022020522575067c51a28ab0f07ad1071html5thumbnails2jpg width=140 height=200 adivp© 1928 Nature Publishing Grouppdiv