. Elements of practical agriculture; comprehending the cultivation of plants, the husbandry of the domestic animals, and the economy of the farm. >B^ ^\\\ANNX\ in its subterraneous channel before it shall arrive at the sur- face, and to carry it away in a drain. By cutting a drain at A, Fig. 101, the water of the stratum of sand CE, is cut off before it reaches the surface at C, where it forms the swamp CD. In like manner, in Fig. 102, by forming a drain at C or F, the water is cut off in its channel AB, and thus, in relieving the pressure from the higher source, by giving egress to the wat
. Elements of practical agriculture; comprehending the cultivation of plants, the husbandry of the domestic animals, and the economy of the farm. >B^ ^\\\ANNX\ in its subterraneous channel before it shall arrive at the sur- face, and to carry it away in a drain. By cutting a drain at A, Fig. 101, the water of the stratum of sand CE, is cut off before it reaches the surface at C, where it forms the swamp CD. In like manner, in Fig. 102, by forming a drain at C or F, the water is cut off in its channel AB, and thus, in relieving the pressure from the higher source, by giving egress to the water through the drain, the cause of the wetness from E to D is removed. In looking at the sloping surface of any tract of ground, as a field, in which there is an oozing or bursting out of water, we shall generally distinguish the line where the wetness begins to appear on the surface, extending over a considerable space, xxxxx, Fig. 103, the effects appearing in the wetness of the ground farther down the slope, as yyy. The line where the wetness begins, and which is generally rendered perceptible by the change of colour of the soil, the tendency to produce sub- aquatic plants, and other indications of wetness, marks for the. ȉ < mmWr. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Low, David, 1786-1859. London : Longman, [etc. , etc. ]
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Keywords: ., bookcentury1800, bookdecade1830, bookleafnumber205, bookyear1838
