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Lippincott's Magazine of Popular Literature and Science, Volume 20. July, 1877.
Various
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Lippincott's Magazine of Popular Literature and Science, Volume 26, July 1880.
Various
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Scientific American, Vol. XXXIX.No. 6. [New Series.], August 10, 1878
Various
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Scientific American Supplement, No. 467, December 13, 1884
Various
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Appletons' Popular Science Monthly, December 1899
Various
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Appletons' Popular Science Monthly, June 1899
Various
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Scientific American, Volume XLIII., No. 25, December 18, 1880
Various
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Scientific American Supplement, No. 417, December 29, 1883
Various
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The Scientific Monthly, October to December, 1915
Various
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Lippincott's Magazine of Popular Literature and Science, December 1878
Various
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Scientific American Supplement, No. 711, August 17, 1889
Various
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Appletons' Popular Science Monthly, February 1899
Various
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Scientific American Supplement No. 822, October 3, 1891
Various
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The Kansas University Quarterly : Vol. I, No. 4, April 1893
Various
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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, Volume 15, No. 90, June, 1875
Various
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Lippincott's Magazine of Popular Literature and Science, Volume 17, No. 098, February, 1876
Various
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Lippincott's Magazine of Popular Literature and Science, Volume 11, No. 25, April, 1873
Various
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Appletons' Popular Science Monthly, July 1899
Various
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Appletons' Popular Science Monthly, March 1899
Various
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Scientific American Supplement, No. 794, March 21, 1891
Various
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Scientific American Supplement, No. 497, July 11, 1885
Various
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The Quarterly Journal of Science, Literature and the Arts, July-December, 1827
Various
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The Popular Science Monthly, July, 1900
Various
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Appletons' Popular Science Monthly, April 1899
Various
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