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[Entered at the Post Office of New York, N. Y., as Second Class iatter. Copyrl,e:hted, J890, by Munn & Co.) A Vol. LXIII.--"o. ESTABLI8HED 1845. WEEKI,Y JOURNAL OF 13.J PRACTICAL INFORMATION, ART, SCIENCE, MECHANICS, CHEMISTRY, AND NEW YORK, SEPTEMBER 27, 1890. MANUFACTURES. [$3.00 A Y1U K. WEEKLY. SHIPBUILDING ON THE GREAT LAXES-SIDE LAUNCH OF 3,000 TON STEAMER NORMAN, AT CLEVELAND, OHIO.-[See page 197.] © 1890 SCIENTIFIC AMERICAN, INC.