A SPRING OF WATER AT THE TOP OF THE HOUSE.

HOUGHTON'S AUTOMATIC WATER ELEVATOR, patented Feb. 7, 1871, No.

111,542, delivers water from the well or cistern in the tank at the

top of the house. Is operated by the fire in the kitchen range without

additional fuel; is simple in construction, reliable and cheap.

Reliable parties wanted to introduce them into use in all the States

except New England. For drawings and full description address

CHARLES HOUGHTON, 41 State St., Boston, Mass.

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SHORT HAND.--150 words per minute in four weeks. Send stamp for

Circular.

PROF. GRAY, P. O. Box 4847, New York.

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Scientific American, Volume XXIV., No. 12, March 18, 1871 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. · 第 172 / 194 题