American. 125 Scientific AUGUST 22, 1891. ] … PRICE, by mail, postpaid, - - - $4.00. Curves. By Prof. C. W. MacCord, Sc.D. Description _ MUNN & CO., Publishers, Capacity u pt o 200 tons per hour. of an instrument for drawing the polar harmonic. HARPER'S WEEKLY, OneYear- - - - 4,00 Omice of THE SCIENTIFIC AMERICAN, With 3 figures. Contained in…
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