STEEL CASTINGS,

From 1-4 to 10,000 lbs. weight. An invaluable substitute for expensive

forgings or for malleable iron castings requiring great strength. Send

for circular and price list to CHESTER STEEL CASTING COMPANY, EVELINA

STREET, PHILADELPHIA, PA.

* * * * *

GEORGE C. HICKS & CO., Baltimore, Md. CLAY RETORTS, TILES, FIRE

BRICKS, &c. Terra Cotta Pipes of all sizes.

* * * * *

Scientific American, Volume XXXVI., No. 8, February 24, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. · 第 89 / 203 题