WATER WHEELS.

More than four times as many of Jas. Lefell's improved Double Turbine

Water Wheels in operation than any other kind. 24 sizes made, ranging

from 5 3-4 to 96 in. diam. under heads from 1 to 240 ft. Successful

for every purpose. Large new pamphlet, the finest ever published,

containing over 30 fine illustrations, sent free to parties interested

in water power.

[Illustration]

JAS. LEFFEL & CO.,

Springfield, O., and 109 Liberty

St., New York City.

* * * * *

Scientific American, Volume XXXVI., No. 8, February 24, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. · 第 88 / 203 题