manufacture of an effective incu- engravings. Contained in SCIENTIFIC AMERICAN SUP- For Anti-Friction Bearings of bator that has been carefully tested and found to per- PLEMENT, 59. Price 10 cents. To be had at this office Best Cast Steel. ardened, STEAM HEATER. form all that may be reasonably… … Makers of Victor Cycles, paper is published weekly. Every number contains six- GOING INTO THE POULTRY BUSI- teen pages of useful information and alarge number of ness.—A paper by P. H. Jacobs, reviewing the commer- original engravings of new inventions and discoveries, BOSTON, MASS. cial aspects of…
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