. F. Goodwin, stelton, N. J.Violins, E. R. Mollenhauer, New York city. 11881 SCIENTIFIC AMERICAN, INC 188 ^tuntiiu %mmtm. [March 19, 1881. Mvtrttemtnte. Inside Page, each insertion - - - 75 cents a line. :Back Page, each iusevtion - - - $1.00 a line. !(About eight words to a line.) j Engravings may… … MACHINES.Greggs Patents. ,Steam Power and HandPRESSES, Front Brick,Ornamental Brick, Red Brick,Fire Brick,Artificial Fuel, Building Blocks, Send for Catalogue. Wm, L. Gregg, 402 Walnut St., Philadelphia. Before Answering an Advertisement in this Paper orany Other, Write your Name Plainly and send…
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