Berry, Arthur,b. 1862 · London, J. Murray · leaf 470
somedifficulty as belonging to calcium, and a yellow line thesubstance producing which, known as helium, has onlyrecently (1895) been discovered on the earth. But thechromosphere when disturbed and many of the prominencesgive spectra containing a number of other lines. The corona was for some time… … Fig. 98.—The total solar eclipse of August 29th, 18S6. From a drawingbased on photographs by Dr. Schuster and Mr. Maunder. [To face p. 390. $ 3°2] Solar Spectroscopy: Dopplers Principle 391 Professor Harkness and Professor C. A. Young, who dis-covered a bright line—of unknown origin *—in its…
Astronomy
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