Periodicals
Scientific American Supplement, No. 360, November 25, 1882
Scientific American Supplement, No. 358, November 11, 1882
Scientific American Supplement, No. 430, March 29, 1884
Scientific American Supplement, No. 324, March 18, 1882
Scientific American Supplement, No. 363, December 16, 1882
Scientific American Supplement, No. 299, September 24, 1881
Scientific American Supplement, No. 288, July 9, 1881
Scientific American Supplement, No. 303, October 22, 1881
Scientific American Supplement, No. 286, June 25, 1881
Scientific American Supplement, No. 275, April 9, 1881
