. The book of the farm : detailing the labors of the farmer, steward, plowman, hedger, cattle-man, shepherd, field-worker, and dairymaid. Agriculture. DRAINING. 34J could form either a smooth, indined sole like tile-soles, or a series of steps, as represented in the figure, where they are set two a side lengthways on bed to form the bottom, as at o ; set on end upon these for the sides of the Fig. % mA THE DIFFERENT FORMS OF CONDUITS IN THE INCLINED PLAINS OF DRAINS. conduit, as at r ; and set lengthways across the conduit upon the upright ones, for the cover, as at p. Tiles on the level
. The book of the farm : detailing the labors of the farmer, steward, plowman, hedger, cattle-man, shepherd, field-worker, and dairymaid. Agriculture. DRAINING. 34J could form either a smooth, indined sole like tile-soles, or a series of steps, as represented in the figure, where they are set two a side lengthways on bed to form the bottom, as at o ; set on end upon these for the sides of the Fig. % mA THE DIFFERENT FORMS OF CONDUITS IN THE INCLINED PLAINS OF DRAINS. conduit, as at r ; and set lengthways across the conduit upon the upright ones, for the cover, as at p. Tiles on the level above connect themselves easily with the bricks, as from n; as also on the level below, as at t.— Should a considerable run of water be expected at times, the step form is preferable to the smooth, in order to break the fall and impede the velo- city of the water; especially toward the lower extremity of the drain, where it may acquire too much momentum vnthout a preventive check of this kind. Although much water is expected to flow through the drain, it would not be prudent to build the steps with lime-mortar, as it is too easily- removed, and would not prevent the water finding its way to the founda- tion ; but, in every case, it is proper to build the duct on the inclined planes, with selected materials skillfully put together. (755.) After having fixed the position of the main drains, and detenuined their levels and depths as here described, the next thing is the laying off of the small drains, which are so placed, or should be so constructed, as to have an easy descent toward the main drains into which they individu- ally discharge their waters. They are usually cut in parallel lines down the declination of the ground ; not that all the drains of the same field should be parallel to one another, but only those in the same plane, what- (677). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - color
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectagriculture, bookyear
