Proceedings of the American Academy of Arts and Sciences, Vol. 43: From May, 1907, to May, 1908 (Classic Reprint) - Softcover

Excerpt from Proceedings of the American Academy of Arts and Sciences, Vol. 43: From May, 1907, to May, 1908

The Spectra of Figures 3 and 4 are quite different from each other and from the other spectra Shown. The larger part of the luminescence lines are in the same part of the spectrum as in the others, but the lines are not the same. Figure 4 is more like the spectra 5, 6, and 7 than it is like the ones preceding it in the plate. The three lower figures are all of fluoritesfrom Weardale. They are very Similar in most of their lines, but show evident differences in the strength of individual lines and groups of lines.

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Excerpt from Proceedings of the American Academy of Arts and Sciences, Vol. 43: From May, 1907, to May, 1908

In none of these spectra are the lines quite as sharp as the lines of fluorescence. They are all diffuse in comparison with sharp metallic lines.

About the Publisher

Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com

This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.