26 GARDENING FOR PROFIT. 



(fig. 2). We are particularly careful to place, after set- 

 ting, a piece of sod, grass down, over the joinings of the 



Fig. 2. HORSE-SHOE TILE. 



tiles, to prevent the soil from getting in and stopping up 

 the drainage. 



The manner of constructing stone drains, is governed 

 by the character of the stone on hand ; if round, they are 

 best made as rubble drains, (fig. ,3) ; but if flat, which is 

 much the best, they are made as represented by fig. 4. 



Fig. 3. BUBBLE DRAIN. Fig. 4. FLAT STONE DKAIN. 



But in either case, the same care must be exercised in cov- 

 ering over the top, thoroughly, with sod, shavings, straw, 

 or some similar material, in quantity sufficient to prevent 

 the soil from washing in and filling up the cavity. 

 . PREPARATION OF THE GROUND. Assuming that the 

 ground on which the garden is to be formed is in sod, the 



