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Scientific American, Vol. 66, No. 20 (1892) (1892)

leaf 2

An illustration from Scientific American, Vol. 66, No. 20 (1892), 1892, leaf 2
ple means rare ability. proposed to run the lines on the surface to that width, This is the first census that has undertaken to were procured, drilling machinery driven by com- gather, compile, and publish full statistics concerning to which we objected, for a line measured 1,500 feet or pressed… … given in this bulletin are indicationsof the importance projected up to the surface, being a portion of the Ten, twelve or fifteen holes would be drilled in the of the industry and the success made in reporting it. face on each side, going toward the center, so when all radius of a circle…

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