Simplest in con struction most Send for Catalogue and Prices. W. F. & JOHN BARNES CO. Next t Diamonds in Hardness and Durability. Made t Fh Any Mill Frame change. Rapid Grinder known. Send for Circular. SCIENTIFIC AMERICAN DYNAMO. MECHANICAL ENGINEER OR DRAUGHTSMAN ENCE SCHOOL OF MECHANICS. Scranton Pa. To begin. students need only PAPER. or, 1894-03-03

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