30 



GARDENING FOB PROFIT. 



erned by the character of the stone on hand ; if 

 round, they are best made as rubble drains (figure 2), 

 but if flat, which is much the best, they are made 

 as represented by figure 3 ; but in either case the same 

 care must be exercised in covering over the top thor- 

 oughly with sod, shavings, straw or some similar ma- 

 terial, in quantity sufficient to prevent the soil from 

 washing in and filling up the cavity. 



Cheap drains of hemlock boards are found to be 

 very useful for wet lands and can often be obtained 

 when the regular tiles cannot. They are usually less 

 costly and are more quickly laid. Such drains are usu- 



'. & BUBBLE DRAIN. 



Fig. 3. FLAT STONE DRAIN. 



ally made triangular, with three boards three or four 

 inches wide, nailed edge to edge, or the better way is to 

 put the cover on the top of the drain crosswise (fig. 4). 

 This gives more openings through which the water may 

 enter the drain, and also makes them stronger. Where 

 roads cross a drain of this kind, it is safer to make 

 them in this way and also to lay a plank upon the 

 drain to distribute the pressure. Every precaution 

 should be taken to have the work of draining thor- 

 oughly done. It is costly work, and if one little 

 blunder is made, everything may be spoiled, for a drain 



