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Scientific American, Vol. 33, No. 4 (July 1875) (1875)

leaf 7

An illustration from Scientific American, Vol. 33, No. 4 (July 1875), 1875, leaf 7
contrived, one of the most simple of which is re- needs pass at an acute angle through presented in Fig. 7. It consists mere- Fig- 1, few layers of rock; 3, alternation of ly of a worm, which screws around porous and impervious strata beneath the rod, which is retained only by the surface soil. It… … twenty miles from Berlin. Its present ample supply for human ARTESIAN WELL. depth is 4,194 feet. In the Desert of consumption (JBENKJJ.E, rAIUS, FRANCE. Sahara some seventy-five shafts have Fig. 6. been sunk, which yield a aggregate of 600,000 gallons per hour. The effect of this supply is said…

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