1 S6 CULTIVATION. 



around them. Care must be taken that no space is 

 left between the ends of the tiles, as dirt would be 

 liable to get in and choke the drain. This may be 

 best prevented by the use of collars / but if sole tiles 

 are used, as collars cannot be fitted to them, it is well 

 to cover the top of the joint with a very small rope 

 of twisted grass, secured by a stone or lump of clay 

 on each end, or to lay on the joint a saddle of bent 

 tin, zinc, or galvanized iron, which may be obtained 

 at little cost from a tinsmith, cut from pieces in the 

 waste-heap. 



The ditches for tile draining may be narrowed in, 

 at the bottom, to a width barely sufficient for the 

 workman's foot. In filling-in, after the tile is laid, 

 care should be taken that no stones large enough to 

 break the tile be allowed to fall upon them. After 

 the tiles are covered to a depth of a foot or eighteen 

 inches, the tilling should be trodden, or pounded, 

 firmly down, so as to fit closely around the tiles, and 

 leave no space for water to circulate about them. 



Tile drains are made with 

 much less labor than the stone 

 drains, as they require less dig- 

 ging, while the breaking up of 

 the stone for the stone drain 

 will be usually more expen- 

 FlG g sive than the tiles. Drains 



a Tile drain trench. made with large stones are not 

 b stone drain trench. nearly so good as with small 

 o-Sod laid on the stone. onegj because tney are more 



liable to be choked up by animals working in them. 



