Dodge, Mary Mapes, 1830-1905 · New York : Scribner · leaf 151
st powerful, for itis not only moved by the weight of water itholds, but by the force of the onrushing waterfrom the sluice arranged to feed it from above.The breast-wheel is the next in power, and isused where the fall of water is not so great. 74 THE PRACTICAL BOY. [June, The undershot wheel is… … A BARRtL WHEtL- riG. II. DETAILS OF WATER-WHEELS. In Fig. II several ideas for water-wheels areshown, and among them a boy should be ableto find one that he can easily make from boardsand sticks at a slight cost, and which, if prop-erly rigged and adjusted, will develop a con-siderable amount of…
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