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Scientific American, Vol. 33, No. 11 (1875) (1875)
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iameter, is|accuracy. It consists of a rounded disk, A, divided into 24 | tive of M. Hermann, although the state of the rails or ground to stand. The angles of the main conservatory are to be | hours and their fractional parts. This turns about an axis, | will always have an influence, as in the… … CENTENNIAL HORTICULTURAL BUILDING PHILADELPHIA PA. © 1875 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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