1840.] SENATE— No. 36. 



WJiite's account of Draining, on Smith's plan. 



215 



MAIN DRAIN. 

 15 In, 



SMALLER DRAINS. 

 J2 In 



Broken stones. 



laid on their edge. 



6J/1 



The main or leading drains are cut 3 feet deep, 15 inches wide at 

 the top, taper to 6 inches at the bottom, and filled up with stone from 

 15 to 18 inches. The smaller drains, leading into the main, are 2 feet 

 6 inches deep, 12 inches wide at the top, taper to 3 inches at the bot- 

 tom, and filled with stone 13 inches, with turf upon the stone. The 

 stone is first placed on edge, about 6 or 7 inches, and the remaining 

 part covered with stone broken to 2^ inches ; a section of these drains 

 is given — the drains are parallel to each other. The sub-soil varies 

 much ; the price for cutting the whole, breaking the stones, and filling, 

 has invariably been Id. per yard ; some part has worked better than 

 others, and, upon the whole, I think the work cannot be done for less. 

 With regard to the distance between the drains, in this part, the work 

 must be put out according to circumstances, which requires much 

 attention, as great expense might unnecessarily be incurred, or the 

 object fail. When the land is ready for the operation of the sub-soil 

 plough, a man with a pair of horses turns out the first furrow from 10 



