Scientific Awerican. | SEPTEMBER I0, 1892. 174 “Wadvertisements. PASSENGER & FREIGHT ELEVATORS. TE"G RAVES’ The International Cyclopeedia. AL.S.GRAVES & SON ROCHESTER NY. NEW YORK. BOSTON.S7 LOUIS. CETROIT. Inside Page, each insertion - - 75 cents a line Back Page, each insertion - - - - $1.00 a… … 19th Street, between Broadway and 5th Avenue, New York, 95 MILK ST., BOSTON, MASS, Only $3.00 a Year, Including Postage. “Improvement the order of the age.” Weekly—52 Numbers a Year. THE SMITH PREMIER TYPEWRITER This Company owns the Letters Patent This widely circulated and splendidly illustrated…
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