the significance of Herz's recent experi- ments. Contained in SCIENTIFIC AMERICAN SUPPLE as a suitable material for Propellers.—A paper by Steam and Belt Machtnes to make 700 Pounds MENT, Nos. 683 and 684. Price 10 cents each. To be Eugene H. Cowles, discussing the various materials that Ice in… … THE PHONOGRAPH.—A DETAILED Yours reapectfully, RK. D. IQHT. This widely circulated and splendidly illustrated Co., P. heey ae eit ILL. For Ct: etc. uddress CHARTER GAS ENGINE . “A SEND Fem paper is published weekly. Every number contains six- description of the new and improved form of the pho- Is…
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