A high-school astronomy: in which the descriptive, physical, and practical are combined .. (1853)
Mattison, Hiram, 1811-1868 · New York, F. J. Huntingdon [etc.] · leaf 16
his teachings ? What said of his death X) 12 ASTRONOMY 9. Ptolemy, an Egyptian philosopher, taught astronomyin the second century of the Christian era. He adoptedthe theory that the earth was located in the center of theuniverse, that it was perfectly at rest, and that the sun,moon, and stars… … 1. Ptolemy supposed the earth to he in the center of a system of crystalline arches,or hollow spheres, arranged one within the other, as represented in the cut. It is thoughtby some that he understood the spherical figure of the earth, and the cut is constructedupon this supposition. Ptolemy…
Astronomy
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