Astronomy in a nutshell, the chief facts and principles explained in popular language for the general reader and for schools (1912)
Serviss, Garrett Putman, 1851-1929, Rouben Mamoulian Collection (Library of Congress) DLC · New York, London, G.P. Putnam's sons · leaf 256
pped over into a differentplane, so that they rotate in a retrogradeor backward direction, and their satellites,in like manner, revolve from east to west.The axis of Uranus is not far from uprightto the plane of the ecliptic, so that the motionof its satellites carries them alternately farnorthward… … Photographs of Mars Made at the Yerkes Observatory by E. E. Barnard, with the forty-inchrefractor, September 28, 1909. Comets 201 mathematical calculations, based on its dis-turbing attraction on Uranus. These cal-culations showed where it ought to be ata certain time, and when telescopes…
Astronomy
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