Elementary principles of agriculture; a text book for the common schools . elementaryprinci00ferg Year: 1908 Farm Machinery 275 infrequently in regular use for pumping water, grinding grain, separating milk and other special operations. These motors increase the capacity of the farm worker by enabling him to use and direct more power, resulting in more economical production. Fig. 177. 395. Power Versus Hand Labor. The change from hand tools to implements and special machinery has lead to the use of more power for each worker, and the Fig. 177. A suggestion for the use of power on the farm.


Elementary principles of agriculture; a text book for the common schools . elementaryprinci00ferg Year: 1908 Farm Machinery 275 infrequently in regular use for pumping water, grinding grain, separating milk and other special operations. These motors increase the capacity of the farm worker by enabling him to use and direct more power, resulting in more economical production. Fig. 177. 395. Power Versus Hand Labor. The change from hand tools to implements and special machinery has lead to the use of more power for each worker, and the Fig. 177. A suggestion for the use of power on the farm. From an agricultural implement catalogue. amount is governed somewhat by the abihty of the worker. Man, when working alone, is able to develop only about one-eighth horse power. When he uses one horse, his capacity to work is increased eightfold, and if two horses are used, sixteenfold. The American farmer is not content to drive his brain with a one-horse power when two, three or four may be used to advantage. This demand for more power has stimulated the breed- ing of larger horses for draft purposes. 396. Care of Machinery. The operation of many


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