Abstract
American Journal of Science and Arts, August.—Discovery of oxygen in the sun by photography, and a new theory of the solar spectrum (with plate), by H. Draper.—Action of certain organic substances in increasing the sensitiveness of silver haloids, by M. C. Lea.—Critical periods in the history of the earth and their relation to evolution, by J. Le Conte.—Notes on the internal and external structure of palæozoic crinoids, by C. Wachsmuth.—Chemical composition of Hatchettolite and Samarskite, by O. D. Alien.—Relations of the geology of Vermont to that of Berkshire, by J. D. Dana.—A proposed new method in solar spectrum analysis, by S. P. Langley.—Note on the exactitude of the French normal fork, by R. König.
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Scientific Serials . Nature 16, 432 (1877). https://doi.org/10.1038/016432a0
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DOI: https://doi.org/10.1038/016432a0