Scientific American. [May 1, 1886. | 286 … Chemistry,Electricity Telegraphy, Photography, Archi- H. W. JOHNS M’F'G CO., 87 MAIDEN LANE, N. Y. tecture, Agriculture, Horticulture, Natural History, ete. 175 Randolph St., Chicago; 170 N. 4th St., Philadelphia, PATENT RIVETED MONARCH RUBBER BELTING. All Classes of Readers find in the SCIENTIFIC…
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