Haven Man- tions to the celebrated Leschot’s patent, have made Springfield, Ohio, and New Haven, Conn. ("We invite espe- ufacturing Co.’s Machinists’ Tools. Terms for 1872. variety of these driils more fully adaptable to ever cial atten ion to our new, improved. Portable Steam Kn- ejency and ROCK… … with my Dollar Steam Engine, canhave a duplicate of the | r | \HE “ Scientific American” is printed with MUNN & CO., oot Lathe upon which it was perfected for $50. CHAS.ENEU JOHNSON & GO.’S INK. Tenth and E. P. RYDER, Center & White St. New York. 37 Park Row, New York. Lombard sts. Philadelphia,…
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