 ... 4. Direction of the minor drains 'down the steep,' and that of the mains along the bottom of the chief hollow — tributary mains being provided for the lesser hollows. The reason assigned for the minor drains following the line of steepest descent,...  Annual Report - Էջ 408Ohio State Board of Agriculture - 1865Ամբողջությամբ դիտվող - Այս գրքի մասին
 | 1839 - 520 էջ
...running in a slanting direction across a steep, cut the stratas or layers of suhsoil transversely, and as the stratification generally lies in sheets at an angle to the surface, that the water passing in or hetween the stratas immediately helow the hottom of one drain nearly comes... | |
 | James Smith - 1843 - 64 էջ
...be erroneous. Drains drawn across a steep, cut the strata or layers of subsoil transversely, and as the stratification generally lies in sheets at an angle to the surface, it will be seen, on reference to fig. 7, that the water passing in or between the strata, immediately... | |
 | Henry Stephens - 1844 - 738 էջ
...Drains,'' says he, " drawn across a steep, cut the strata or layers of subsoil transversely, and as the stratification generally lies in sheets at an angle to the surface (see fig. 169), the water passing in or between the strata, immediately below the bottom of one drain,... | |
 | Henry Stephens - 1848 - 188 էջ
...Drains, he observes, drawn across a steep, cut the strata or layers of subsoil transversely, and as the stratification generally lies in sheets at an angle to the surface, (see fig. 29,) the water passing in or between the strata, immediately below the bottom of one drain,... | |
 | Henry Stephens - 1848 - 188 էջ
...Drains, he observes, drawn across a steep, cut the strata or layers of subsoil transversely, and as the stratification generally lies in sheets at an angle to the surface, (see fig. 29,) the water passing in or between the strata, immediately below the bottom of one drain,... | |
 | Henry Stephens - 1852 - 1144 էջ
...Drains," says he, " drawn across a steep, cut the strata or layers of subsoil transversely ; and, as the stratification generally lies in sheets at an angle to the surface (see fig. 169), the water passing in or between the strata, immediately below the bottom of one drain,... | |
 | William Lewis Rham - 1855 - 522 էջ
...declivity. " Drains drawn across a steep, cut the strata or layers of subsoil transversely, and as the stratification generally lies in sheets at an angle to the surface, it is plain that the water passing in or between the strata, immediately below the bottom of one drain,... | |
 | B. Munn - 1855 - 204 էջ
...steep, cut 8 50 FREQUENT OR THOKOUGH DRAINAGE. the strata or layers of subsoil transversely ; and, as the stratification generally lies in sheets at an angle to the surface, the water passing in or between the strata, immediately below the bottom of one drain, nearly comes... | |
 | Henry Flagg French - 1859 - 408 էջ
...being provided for the lesser hollows. " The reason assigned for the minor drains following the line o. steepest descent, was, that ' the stratification generally lies in sheets at an angle to the surface.' " Oth. As to material — Stones preferred to tiles and pipes." Mr. Smith somewhat modified his views... | |
 | Elliot G. Storke - 1859 - 832 էջ
...a declivity: "Drains drawn across a steep, cut the strata or layers of subsoil transversely; and as the stratification generally lies in sheets at an angle to the surface, it is plain that the water passing in or between the strata, immediately below the bottom of one drain,... | |
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