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Scientific American, Vol. 24, No. 16 (April 1871) (1871)

leaf 4

An illustration from Scientific American, Vol. 24, No. 16 (April 1871), 1871, leaf 4
is, it became necessary to cross the river The bits are represented by the annexed cuts. They' are BOEING FOB OIL. Schuylkill with the main, and it was decided to use a sub 3| inches broad on the face, and the reamers are 4-| inches. merged pipe, designed and patented by John F. Ward, of The… … cine, law, and divinity. The term " civil engineer " & Hart, of Buffalo, N. Y. The steam engines in use would then present some definite idea to our minds; at are portable, and generally 8 or 10 horse power. A 900 feet in boring for oil in Pennsylvania is extracted from Blake's present, it may mean…

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