div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=infra-red-absorption-spectrum-of-diamond-57993e6fda951htmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Infra-Red Absorption Spectrum of Diamond loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentsusreader035viewer2022080320575067ec1a28ab0f07adc5b1html5thumbnails1jpg width=140 height=200 divp© 1946 Nature Publishing Grouppdiv