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Scientific American Supplement, No. 648, June 2, 1888
25241

Scientific American Supplement, No. 664, September 22,1888
25242

Scientific American Supplement, No. 711, August 17, 1889
25243

Scientific American Supplement, No. 717, September 28, 1889
25244

Scientific American Supplement, No. 787, January 31, 1891
25245

Scientific American Supplement, No. 794, March 21, 1891
25246

Scientific American Supplement, No. 795, March 28, 1891
25247

Scientific American Supplement, No. 799, April 25, 1891
25248