...which excessive and injurious wetness is attributable; and if such water be not removed and kept down at a depth exceeding the power of capillary attraction to elevate it too near the surface, no drainage can be efficient. It is chiefly through capillarity that those soils...

...This result they do not attribute simply to the efficiency of the drainage, but also to the principle of converting the water falling on the surface into an agent for fertilizing the ground, by its passage through a greater depth, and in its passage imparting to the particles of...

...50 feet, with preference for wide interval«. 2nd. Deeper dr«™ at a minimum depth of four feet, designed with the twofold object of not only freeing the active soil of stagnant and injurious water, hut of converting the water falling on the s:.:face into an ageut...

...fifty feet, with preference for wide intervals. l' 2nd. Deeper drains at a minimum depth of four feet, designed with the two-fold object of not only freeing...exceeding the power of capillary attraction to elevate it to near the surface.' '' 3rd. Parallel arrangement of drains, as advocated by Smith, of Deanston. ''...

...freeing the aclive soil from stagnant and usurious water, but of converting the water falling on Ihe surface into an agent for fertilizing ; no drainage...exceeding the power of capillary attraction to elevate it to near the surface.' " 3rd. Parallel arrangement of drains, as advocated by Smith, of Deanston. "...

...fifty-one feet 2. Deeper drains, at a minimum depth of four feet, designed with the two-fold purpose of not only freeing the active soil from stagnant...the power of capillary attraction to elevate it near th« *arface. 3. General arrangement of the drains, the same as in the original system. 4. Small, round...

...to fifty feet, with preference for wide intervals. 2. Deeper drains at a minimum depth of four feet, designed with the twofold object of not only freeing...exceeding the power of capillary attraction to elevate it to near the surface. 3. Parallel arrangement of drains, as advocated by Smith of Deanston. 4. The advantage...

...injurious water, but of converting the water falling on the surface into an agent for fertilising; no drainage being deemed efficient that did not both...exceeding the power of capillary attraction to elevate it too near the surface." 3rd. Parallel arrangement of drains, as advocated by Smith of Deanston. 4th....

...21 to 50 feet, with preference for wide intervals. and. Deeper drains at a minimum depth of 4 feet, designed with the twofold object of not only freeing...the water falling on the surface into an agent for fertilising; no drainage being deemed efficient that did not both remove the water falling on the surface,...