Scientific American. [AucusT 18, 1888. Ito NEW GAS ENGINE EME RY GRINBING CHALLENG ‘Modvertisements. SHING MACHINERY ~ POLt AND CUMBERLAND. PHILA. THIRD LEP E ONaF €« Inside Page, each insertion « = = 75 cents aline. HOW TO MAKE AN INCUBATOR.— Back Page, each insertion = = - $1.00 a line. … Er, BALLS. WaT ANDEMS For Anti-Friction Bearings, of ESTABLISHED 1846. Best Cast Steel. Hardened, The Most Popular Seientifie Paper in the World. Ground, and urnished, from 3-16 in. to 2 in. diameter. GUARANTEED=HIGHEST GRADE In quality and density of metal, FOS Ne Se Noubera ears i Ont 00a Year,…
Internet Archive · Public domain (published before 1931). Free to use for anything.
