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Scientific American, Vol. 47, No. 25 (1882) (1882)
leaf 7
the ages for the examination of = rt TIFIC AMERICAN of October 21, 1882. The No. 2 mill is of the scientists of the present day. Compared with these Ir will require an expenditure of at least $5,000,000 by the the same design, only heavier; and their mammoth No. 1 tracks as to age, the pyramids of… … © 1882 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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