The geography of the heavens, and class book of astronomy: (1853)
Burritt, Elijah H. (Elijah Hinsdale), 1794-1838, Mattison, Hiram, 1811-1868, Dick, Thomas, 1774-1857. [from old catalog] · New York, F. J. Huntington [etc.] · leaf 238
ions by observingthat after the exposure of the luminous zone about the northpole to a summer of eight months, it was considerably de-creased, while that on tke south pole, which had been i.atotal darkness during eight months, had considerably in-creased. He observed, farther, that when this spot… … The extraordinary height and density of the atmosphereof Mars, are supposed to be the cause of the remarkableredness of its light. It has been found by experiment, that when a beam ofwhite light passes through any colorless transparent medium,its color inclines to red, in proportion to the density…
Constellations · Stars
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