. The elements of agriculture:. Agriculture. 216 CULTIVATION. most distant drains must be the deepest. This will be understood by referring to the follov/ing diagram. Fi?. aa—5 feet drains, 80 ft. apart, hb—3 feet drains, 20 ft. apart. The curved line represents the position of the water. In most soils it will be easier to dig one trench five feet deep, than four trenches three feet deep, and the deep trenches will be equally beneficial; but where the soil is very hard below a depth of three feet, the shallow trenches will be the cheapest, and in such soils they will often be better, as th
. The elements of agriculture:. Agriculture. 216 CULTIVATION. most distant drains must be the deepest. This will be understood by referring to the follov/ing diagram. Fi?. aa—5 feet drains, 80 ft. apart, hb—3 feet drains, 20 ft. apart. The curved line represents the position of the water. In most soils it will be easier to dig one trench five feet deep, than four trenches three feet deep, and the deep trenches will be equally beneficial; but where the soil is very hard below a depth of three feet, the shallow trenches will be the cheapest, and in such soils they will often be better, as the hard mass might not allow the water to pass down to en- ter the deeper drains. By following out these instructions, land may be cheaply, thoroughly, and permanently drained. Describe the principle which regulates these relative depths and distances. (Blackboard.) Which is usually the cheaper plan of constructing drains ?. 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 Waring, George Edwin, 1833-1898. [from old catalog]. New York, D. Appleton and company
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectagriculture, bookyear
