. Carnegie Institution of Washington publication. 120 INFRA-RED EMISSION SPECTRA. oxides, it emits a continuous spectrum. The depression at p. is small. The transmission bands in cassiterite, Sn02, were found to be 12 3 4 5 6 7 Fig. 88. — Iron oxide, (a) (6); Copper oxide. 8/1. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carnegie Institution of Washington. Washington, Carnegie Institution of Washington

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