An encyclopædia of agriculture [electronic An encyclopædia of agriculture [electronic resource] : comprising the theory and practice of the valuation, transfer, laying out, improvement, and management of landed property, and the cultivation and economy of the animal and vegetable productions of agriculture, including all the latest improvements, a general history of agriculture in all countries, and a statistical view of its present state, with suggestions for its future progress in the British Isles encyclopdiaofa02loud Year: 1831 Be III. IMPLEMENTS OF IRRIGATION. 725 are informed by Step
An encyclopædia of agriculture [electronic An encyclopædia of agriculture [electronic resource] : comprising the theory and practice of the valuation, transfer, laying out, improvement, and management of landed property, and the cultivation and economy of the animal and vegetable productions of agriculture, including all the latest improvements, a general history of agriculture in all countries, and a statistical view of its present state, with suggestions for its future progress in the British Isles encyclopdiaofa02loud Year: 1831 Be III. IMPLEMENTS OF IRRIGATION. 725 are informed by Stephens, upwards of 200 acres arc so irrigated from the principal com- mon sewer, and that, although the formation of these meadows is irregular, and the management very imperfect, the effects of the water are astonishing: they produce crops of grass not to be equalled, being cut from four to six times a year, and the grass given green to milch cows. SuBSECT. 2. Implements made Use of in Watering Lands; and the Terms of Art peculiar to such Operations. 4392. The principal instruments made use of in the preparation of lands for watering are the following : — io93. The level, of which different descriptions have already been given, is necessarily employed to take the level of the land at a distance, compared with the part of the river, &c. whence it is intended to bring the water, to know whether it can or cannot be made to float the part Intended to be watered. Bringing the water after them to work by is found very useful in undertakings of this nature, especially when on a large scale, though the workmen too frequently dispense with it. In drawing a main, they begin at the head, and work deep enough to have the water to follow them; and in drawing a tail drain, they begin at the lower end of it, and work upwards, to let the water come after them. The level should, however, be made use of, as being more certain and correct. Brown, an experienced irriga- tor in the west of Engla
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