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Scientific American Supplement, No. 664, September 22,1888
Various
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Scientific American Supplement, No. 365, December 30, 1882
Various
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Philosophical Transactions of the Royal Society - Vol 1 - 1666
Various
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Lippincott's Magazine of Popular Literature and Science, Vol. 22, November, 1878
Various
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Buchanan's Journal of Man, August 1887
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Lippincott's Magazine, October 1885
Various
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Buchanan's Journal of Man, January 1888
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Appletons' Popular Science Monthly, March 1900
Various
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Scientific American magazine Vol 2. No. 3 Oct 10 1846
Various
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Scientific American Supplement, No. 430, March 29, 1884
Various
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Buchanan's Journal of Man, July 1887
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Lippincott's Magazine of Popular Literature and Science, Volume 15, No. 85, January, 1875
Various
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Buchanan's Journal of Man, October 1887
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Appletons' Popular Science Monthly, March 1899
Various
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Appletons' Popular Science Monthly, May, 1900
Various
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Scientific American Supplement, No. 360, November 25, 1882
Various
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Buchanan's Journal of Man, May 1887
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Lippincott's Magazine of Popular Literature and Science, Volume 15, No. 90, June, 1875
Various
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Scientific American Supplement, No. 443, June 28, 1884
Various
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Philosophical transactions, Vol. L. Part I. For the year 1757.
Various and Royal Society
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Scientific American, Volume XLIII., No. 25, December 18, 1880
Various
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The Popular Science Monthly, October, 1900
Various
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Scientific American, Volume 22, No. 1, January 1, 1870
Various
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Scientific American Supplement, No. 623, December 10, 1887
Various
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Scientific American Supplement, No. 467, December 13, 1884
Various
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