. Farm development; an introductory book in agriculture, including a discussion of soils, selecting & planning farms, subduing the fields, drainage, irrigation, roads, fences, together with introductory chapters concerning farm business, and the relations of general science to agriculture . on ol the cxlindrical drain tile. In hi^urc 74are sliown drain tiles of the xarioiis sizes, from 2 inchesto 12 inclies in diameter. ( )ther forms have been recom-mended at eo/foas various times,but tliere isai)parently noadvantage ofthese f o r m sover the cy-lindrical, whilethere arc somemanifest disad-\ a
. Farm development; an introductory book in agriculture, including a discussion of soils, selecting & planning farms, subduing the fields, drainage, irrigation, roads, fences, together with introductory chapters concerning farm business, and the relations of general science to agriculture . on ol the cxlindrical drain tile. In hi^urc 74are sliown drain tiles of the xarioiis sizes, from 2 inchesto 12 inclies in diameter. ( )ther forms have been recom-mended at eo/foas various times,but tliere isai)parently noadvantage ofthese f o r m sover the cy-lindrical, whilethere arc somemanifest disad-\ a n t a ,^ e s . tiles,3 to 12 inchesin diameter, are u s u a 1 1 ymade one footliin^, but occa-si(mally in two-foot Icngths :while 12 to 24-inch tiles aremade in two-foi it lengths. Tiles with a shoulder (as shown in lii;ure75), made like sewer pipes, are manufactured in two-footleui^ths, of all sizes. Drain tiles are made of clay similar to that used inthe manufacture of ordinary brick, ddie clay or mixtureof clay and sand must be of a nature to burn tinderhigh heat in such a manner that when the tiles areexposed to the action of moisttire ancl frost, they will re-main intact and not scale niir crumble. In nearly alljiarl^ (if America wheie drainage has been nee(led, clays. (•i;; lie :.!. nf (liaill- vi-un Ihf li-; (if a lik ■nmli s nt llic lines and Ih 11 th s li^ lie. ..1 lile . may ; 1 nil iiUiits (iiim llie .sill laliel 1 11. ilils. Ill siiiiK (.■ase> liilii (if drains .1 |iciy A simple i-ilaii of mapiiinn Inliaiii anil its branches, giving the( .iii.;lcs nf (liveiKeiiee shinviiif iiiiilfis and (if tlie points of inilso be sliown on a map by meansLs of tlie farm or from other per-^ it is to mark an iii-iiiaiieiit iiKininuPiil. as by a laii;r DRAINAGE 167 liave been found which can be manufactured into goodtiles. The manufacture of drain tiles requires consider-able skill as
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculture, bookyear
