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Scientific American, Vol. 100, No. 15 (April 1909) (1909)

leaf 4

An illustration from Scientific American, Vol. 100, No. 15 (April 1909), 1909, leaf 4
y be heard through the intervening ground by the researches for underground water which were prey, so the pig was put in the den alive; but as his means of the acoustele. made not long since by M. Dienert, engineer of the prey had been killed for him In captivity, the snake In all these cases the… … above were made in the mentioned should be dug at different parts of the ACOUSTELE BROKEN AWAY ACOUSTELE BOXED AND IN POSITION FOR LOCATING suburbs of the city in TO SHOW THE CONE. ground, and the point which is best for carrying UNDERGROUND WATER PLOW. the neighborhood of the out the boring will…

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