This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1842 Excerpt: ...horses which it required, and the manner of working it. He replied, that after trying various descriptions of ploughs, the heaviest was found to answer the best for the ploughman and horses; this new plough weighed 400 lbs., but it was not subject to be thrown out of the furrow. He is sometimes obliged to use nine horses, and from three to six in ordinary soils. The horses should not be in a line; nothing can be worse than this mode of arrangement, because their feet make holes in which the water lodges. He always harnesses them three a-breast, one walks in the furrow; and he conceives that Mr. Sterling's method of making them walk out of the furrow is excellent, although a small portion of their power may be lost. When the ground has been once ploughed to the depth of sixteen inches by his new plough, subsequent ploughings of the same depth are made with a plough the share of which is very narrow, and which is drawn by six horses. He is satisfied that steam-power can be applied with considerable advantage to the cultivation of land; but he doubts whether it can be made available for turning up the subsoil for the first time, on account of the great number of stones which exist. Ploughing could be effected by steam in two ways: first, by a fixed machine; second, by a locomotive machine, furnished with shares for turning up and breaking the soil. These shares might be made to revolve, and by striking the ground would enable the machine to move. He has constructed a model, and he hopes soon to make some experiments. He is aware that ploughing has been effected by stationary engines, but he has not yet seen them. He believes that steam-ploughs will be of great use for such works as Lord Kaimes commenced fifty years ago, and which his son and grandson have cont...
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