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Buchanan's Journal of Man, March 1887
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Lippincott's Magazine of Popular Literature and Science, Volume 15, No. 87, March, 1875
Various
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Scientific American, Volume 56, No. 9, February 26, 1887
Various
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Scientific American Supplement, No. 821, September 26, 1891
Various
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Scientific American Supplement, No. 384, May 12, 1883
Various
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Appletons' Popular Science Monthly, April 1900
Various
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Appletons' Popular Science Monthly, April 1899
Various
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Lippincott's Magazine of Popular Literature and Science, Volume 22. October, 1878.
Various
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Scientific American, Volume 17, No. 26 December 28, 1867
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 Supplement, No. 286, June 25, 1881
Various
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Lippincott's Magazine of Popular Literature and Science, October, 1877. Vol XX - No. 118
Various
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Scientific American Supplement, No. 497, July 11, 1885
Various
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Scientific American Supplement, No. 810, July 11, 1891
Various
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Scientific American Supplement, No. 1082, September 26, 1896
Various
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Scientific American Supplement, No. 417, December 29, 1883
Various
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Scientific American Supplement, No. 514, November 7, 1885
Various
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Appletons' Popular Science Monthly, January 1899
Various
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The Popular Science Monthly, October, 1900
Various
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Scientific American Supplement, No. 392, July 7, 1883
Various
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Scientific American Supplement, No. 299, September 24, 1881
Various
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Scientific American Supplement No. 822, October 3, 1891
Various
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Scientific American Supplement, No. 598, June 18, 1887
Various
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Lippincott's Magazine, August, 1885
Various
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Scientific American Supplement, No. 288, July 9, 1881
Various
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