he 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 following description of to Is and methods employed They are made, however, of various sizes, and all have Jersey City, N J.; a contract… … 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 anybody, from Robert Stephenson or I " x'iotices of Mining Machinery" : well can be drilled with an 8…
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