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Scientific American, Vol. XXXIX.No. 6. [New Series.], August 10, 1878
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Scientific American Supplement, No. 530, February 27, 1886
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Scientific American Supplement No. 819, September 12, 1891
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Scientific American Supplement, No. 441, June 14, 1884.
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Scientific American Supplement, No. 421, January 26, 1884
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Scientific American Supplement, No. 460, October 25, 1884
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Scientific American Supplement, No. 795, March 28, 1891
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Scientific American Supplement, No. 417, December 29, 1883
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Scientific American Supplement, No. 344, August 5, 1882
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Scientific American Supplement, No. 481, March 21, 1885
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Scientific American, Volume 17, No. 26 December 28, 1867
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Scientific American Supplement, No. 508, September 26, 1885
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Scientific American Supplement, No. 717, September 28, 1889
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Scientific American Supplement, No. 531, March 6, 1886
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Scientific American Supplement, No. 497, July 11, 1885
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Scientific American Supplement, No. 633, February 18, 1888
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Scientific American Supplement, No. 458, October 11, 1884
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Scientific American Supplement, No. 415, December 15, 1883
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Scientific American Supplement, No. 288, July 9, 1881
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Scientific American Supplement, No. 520, December 19, 1885
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Scientific American Supplement, No. 299, September 24, 1881
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Scientific American Supplement, No. 1082, September 26, 1896
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Scientific American Supplement, No. 470, January 3, 1885
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Scientific American Supplement, No. 799, April 25, 1891
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Scientific American Supplement, No. 392, July 7, 1883
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