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Buchanan's Journal of Man, February 1887
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Philosophical transactions, Vol. L. Part I. For the year 1757.
Various and Royal Society
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The Kansas University Quarterly, Vol. I, No. 2, October 1892
Various
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Buchanan's Journal of Man, April 1887
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Buchanan's Journal of Man, January 1888
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Lippincott's Magazine of Popular Literature and Science, Vol. 22, November, 1878
Various
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Buchanan's Journal of Man, March 1887
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Appletons' Popular Science Monthly, April 1900
Various
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Lippincott's Magazine of Popular Literature and Science, Volume 22. July, 1878.
Various
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The Popular Science Monthly, October, 1900
Various
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Buchanan's Journal of Man, October 1887
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Buchanan's Journal of Man, July 1887
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Scientific American Supplement, No. 664, September 22,1888
Various
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Scientific American, Vol. XLIII.—No. 1. [New Series.], July 3, 1880
Various
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Scientific American, Vol. XXXIX.No. 6. [New Series.], August 10, 1878
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. 360, November 25, 1882
Various
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Lippincott's Magazine of Popular Literature and Science, Volume 20. July, 1877.
Various
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Scientific American, Volume XLIII., No. 25, December 18, 1880
Various
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Scientific American Supplement, No. 633, February 18, 1888
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 26, July 1880.
Various
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Appletons' Popular Science Monthly, July 1899
Various
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Scientific American Supplement No. 822, October 3, 1891
Various
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Appletons' Popular Science Monthly, March 1900
Various
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