-
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Scientific American Supplement, No. 514, November 7, 1885
Various
-
Scientific American Supplement, No. 623, December 10, 1887
Various
-
Scientific American Supplement, No. 711, August 17, 1889
Various
-
Scientific American Supplement, No. 664, September 22,1888
Various
-
Buchanan's Journal of Man, October 1887
-
Appletons' Popular Science Monthly, July 1899
Various
-
Philosophical Transactions of the Royal Society - Vol 1 - 1666
Various
-
Buchanan's Journal of Man, March 1887
-
The Popular Science Monthly, October, 1900
Various
-
Buchanan's Journal of Man, August 1887
-
Appletons' Popular Science Monthly, April 1900
Various
-
Buchanan's Journal of Man, January 1888
-
Scientific American, Vol. XLIII.—No. 1. [New Series.], July 3, 1880
Various
-
Scientific American, Volume XLIII., No. 25, December 18, 1880
Various
-
Buchanan's Journal of Man, June 1887
-
Lippincott's Magazine of Popular Literature and Science, Volume 17, No. 098, February, 1876
Various
-
Scientific American Supplement, No. 360, November 25, 1882
Various
-
Buchanan's Journal of Man, May 1887
-
Appletons' Popular Science Monthly, February 1899
Various
-
Lippincott's Magazine of Popular Literature and Science, Volume 22. July, 1878.
Various
-
Philosophical transactions, Vol. L. Part I. For the year 1757.
Various and Royal Society
-
Lippincott's Magazine of Popular Literature and Science, Volume 12, No. 33, December, 1873
Various
-
Appletons' Popular Science Monthly, March 1899
Various
-
Lippincott's Magazine of Popular Literature and Science, Volume 12, No. 31, October, 1873
Various
-
Lippincott's Magazine of Popular Literature and Science, Volume 20. July, 1877.
Various
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