POND'S TOOLS.

Engine Lathes, Planers, Drills, &c. Send for Catalogue. DAVID W. POND,

Successor to Lucius W. Pond, Worcester, Mass.

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L. SMITH HOBART, PRESIDENT.

JOHN C. MOSS, SUPERINTENDENT.

D.J. CARSON, GENERAL AGENT.

Scientific American, Volume XXXVI., No. 8, February 24, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. · 第 121 / 203 题