A popular handbook and atlas of astronomy, designed as a complete guide to a knowledge of the heavenly bodies and as an aid to those possessing telescopes (1891)
Peck, William, Sir, 1862-1925 · New York, G. P. Putnam's Sons · leaf 169
een in the field of view alongside of the solar spectrum. When thus examined it isfound that they coincide exactly with two dark lines in the spectrum of the sun, which proves that theselatter owe their existence to sodium vapour surrounding the solar globe. In the same manner hundreds of other… … Fig. 38. THE authors spectroscope. C, Cylindrical Lens.S, Slit.FP, Frisms.T, Viewing Telescope. Barium.Calcium.Chromium.Cobalt. Hydrogen.Iron. Magnesium.Manganese. Nickel.Platinum.Sodium.Titanium. while there is the strongest evidence for supposing that the following also exist in the solar…
Astronomy
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