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Scientific American, Vol. 36, No. 17 (April 1877) (1877)

leaf 7

An illustration from Scientific American, Vol. 36, No. 17 (April 1877), 1877, leaf 7
nner bar is adjusted parallel to the end of the cloth, as shown in the engraving. A line is then ruled Greece City, Pa. by the yard stick and the measure is moved a corresponding ■»<»»•■ Plowing with Dynamite. distance, as indicated by the crossbars. These lines are ruled both by the yard stick and… … could. A certain number of dynamite car- SOMES' YABD STICK AND BIAS MEASURE. tridges are buried at regular distances in the The explo- soil, and connected together by electric wires, It is then certain that the stuff will be accurately cut, while sion is simultaneous; and, though nothing is thrown…

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