Scientific American, New York, October 7, 1899., Vol. LXXXI, NO. 15.
New York: Munn & Co., No. 361 Broadway, 1899. Ephemera no binding. Folio (16 ¼” x 11 ¼”); pp226-240; illustrated wrapper; 4” separation at bottom wrapper fold, closed tear to front wrapper fore-edge, light hand-soiling; very good. Advertised as a Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry and..... More