362 



TABLE XV. LENGTH OF DRAINS AND TILKS REQUIRED PER ACRE 



tvreen the drains of 33 feet, the estimated cost beins: 8M. per rood of 6 

 yards. 



In 'he Table opposite 3'* fret, the width, stands 73 roods 2 yards, which at 

 SA I. per rood, is 2, 11s. 11$ 1., the expense per acre. 



COST OF DRAINING PER ACRE. 



The following estimates of the cost of drains is taken from 

 Morton's Cyclopedia of Agriculture, and may be useful to those 

 who are not in possession of that work. The cost of cutting, 

 laying, and filling in pipe drains of from 3 feet, to 3 feet 6 

 inches in depth, the greater depths being in clay or gravel, and 

 the lesser depths in hard indurated soils requiring picking, was 

 5\d. to ('Id. per rod of 51 yards, or about Itf. er yard. 



Taking the price of tiles at 125. per 1000, the cost of draining 

 per rod, in soils somewhat difficult to excavate, exclusive of car- 

 riage of pipes or tiles, for 3J feet drains, will be about 7|d. 



The third column of the following Table shows the cost per 

 acre, according to the different distances between the drains, 

 exclusive of carriage, and of the slight additional expense of the 

 larger pipes required for the mains. 



AVhere the drains are not so deep as 3J feet, or where, from 

 the ease with which the cutting can be effected, or from other 

 causes, the cost of workmanship does not exceed \d. per rod, the 

 cost of the drains, omitting fractions, will be as stated in the 

 fourth column of the Table. 



Stone drains 3 feet 6 inches in depth, and 5 inches wide in 

 the bottom, in indurated stony clay, is estimated to cost Is. per 

 rod, for quarrying whins tone, and breaking it to pass through a 

 3-inch ring; filling stones into carts, and carriage; emptying the 

 stones into drains with the drain-screen, to the depth of 14 

 inches, and returning the earth into the drains with the spade. 

 The cost per acre is shown in the 5th column of the Table. 



Drains of broken stones are thus found to be fully 30 per cent, jj 

 more costly than those of pipe tiles, when cut to the same \\ 

 depths, in the same kind of soil. 



