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Scientific American, Vol. XLIII.—No. 1. [New Series.], July 3, 1880
Various
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Buchanan's Journal of Man, July 1887
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Scientific American Supplement, No. 388, June 9, 1883
Various
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Scientific American, Volume XLIII., No. 25, December 18, 1880
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 22. July, 1878.
Various
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Lippincott's Magazine of Popular Literature and Science, Volume 17, No. 098, February, 1876
Various
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Philosophical Transactions of the Royal Society - Vol 1 - 1666
Various
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Buchanan's Journal of Man, August 1887
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Buchanan's Journal of Man, January 1888
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Lippincott's Magazine of Popular Literature and Science, Volume 20. July, 1877.
Various
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Buchanan's Journal of Man, March 1887
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Buchanan's Journal of Man, October 1887
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Scientific American, Vol. XXXIX.No. 6. [New Series.], August 10, 1878
Various
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Appletons' Popular Science Monthly, February 1899
Various
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The Popular Science Monthly, October, 1900
Various
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Scientific American Supplement, No. 514, November 7, 1885
Various
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Appletons' Popular Science Monthly, April 1900
Various
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Lippincott's Magazine of Popular Literature and Science, Volume 12, No. 31, October, 1873
Various
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Scientific American Supplement, No. 633, February 18, 1888
Various
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Scientific American, Volume 22, No. 1, January 1, 1870
Various
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Lippincott's Magazine of Popular Literature and Science, Volume 12, No. 33, December, 1873
Various
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Scientific American, Vol. XXXIX.—No. 24. [New Series.], December 14, 1878
Various
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Scientific American Supplement, No. 821, September 26, 1891
Various
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Scientific American, Volume 56, No. 9, February 26, 1887
Various
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