attern, of unequaled PROVIDENCE, R. I. Geo. Place Machinery Agency, 121Chambers St., N. Y. strength, toughness, and durability. 20,000 Crank Shafts and 15,000 Gear Wheels of this steel now running prove THE MOST POPULAR SCIENTIFIC PAPER its superiority over other Steel Castings Send for PRINTERS’… … order or check, Ali telephones obtained except from this company, or —ROCK BORING. — MUNN & Co.. 361 Broadway, N. Ye makers. sellers.and users will be proceeded against SQUUIIS Publishers SCIENTIFIC AMERICAN. Y & MOEN Information furnished upon apvlication. MERICAS BELL TELEPHONE COMPANY. | [ON £…
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