Scientific American Supplement, No. 344, August 5, 1882

The Ohio Journal of Science. Vol. XVI., No. 2 (December, 1915)

The Kansas University science bulletin, Vol. I, No. 8, September 1902

Lippincott's Magazine of Popular Literature and Science, Volume 11, No. 27, June, 1873

Buchanan's Journal of Man, June 1887 Volume 1, Number 5

Lippincott's Magazine of Popular Literature and Science, Volume 17, No. 102, June, 1876

Scientific American Supplement, No. 623, December 10, 1887

Lippincott's Magazine of Popular Literature and Science, Volume 12, No. 30, September, 1873

Scientific American Supplement, No. 433, April 19, 1884

The Ohio Naturalist, vol. II, no. 2, December, 1901

Scientific American Supplement, No. 795, March 28, 1891

Appletons' Popular Science Monthly, April 1899 Volume LIV, No. 6, April 1899