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Lippincott's Magazine of Popular Literature and Science, Volume 11, No. 27, June, 1873
Various
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Buchanan's Journal of Man, January 1888
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Scientific American Supplement, No. 623, December 10, 1887
Various
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Buchanan's Journal of Man, April 1887
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Philosophical transactions, Vol. L. Part I. For the year 1757.
Various and Royal Society
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Lippincott's Magazine of Popular Literature and Science, Vol. 22, August, 1878
Various
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Buchanan's Journal of Man, February 1887
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The Kansas University Quarterly, Vol. I, No. 2, October 1892
Various
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Buchanan's Journal of Man, October 1887
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Scientific American Supplement, No. 664, September 22,1888
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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Lippincott's Magazine of Popular Literature and Science, Vol. 22, November, 1878
Various
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The Popular Science Monthly, October, 1900
Various
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Scientific American Supplement, No. 360, November 25, 1882
Various
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Scientific American, September 29, 1883 Supplement. No. 404
Various
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Buchanan's Journal of Man, June 1887
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Lippincott's Magazine of Popular Literature and Science, Volume 22. July, 1878.
Various
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Buchanan's Journal of Man, March 1887
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Buchanan's Journal of Man, August 1887
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Scientific American Supplement, No. 633, February 18, 1888
Various
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Appletons' Popular Science Monthly, March 1900
Various
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Appletons' Popular Science Monthly, April 1900
Various
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Scientific American Supplement, No. 430, March 29, 1884
Various
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Scientific American Supplement, No. 384, May 12, 1883
Various
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