PORTER MANUF'G CO.

[Illustration]

The New Economizer, the only Agricultural Engine with Return Flue Boiler

in use. Send for circular to Porter MFG. Co., Limited, Syracuse. N. Y.

[Illustration]

G. G. YOUNG, Gen. Agt., 42 Cortland St., New York.

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Scientific American, Volume XLIII., No. 25, December 18, 1880 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. · 第 134 / 165 题