( I70 ) 



The ditches I have (ketched, I fuppofe to 

 amount to two thirds of all on the farm ; 

 he remaining third 1 leave for the fecond 

 yearns work: 1500 perches I think as much 

 as can be found in a well-difpofed farm of 

 113* acres; and if the fields are too fmall^ 

 they fhould be reduced in number, as fo 

 perfed a draining as I have {ketched, will 

 not need numerous ditches. The varia- 

 tions I have made in their fize, are fuch as 

 will ever be found neceifary for draining 

 farms in a flat country. The firft bufinefs 

 is to provide a courfe for collected water, 

 which, in a level tradl, cannot be done by 

 ditches of the fame depth. I have experi- 

 enced this in many fields : in proportion to 

 their depth they muft be ivide ; and con- 

 fequently, the whole expence of them in- 

 creafed greatly. This is the reafon of my 

 charging them at different prices. 



The hollow-ditching I feetch in the 

 proportion of 80 perches to an acre, which 

 will effectually drain the wetted foils. The 

 variation of 100 at 6 d, is an allowance for 

 cutting through headlands, and other fhort 

 rifing grounds, through which the drains 

 are deeper; and the workmen, confequcntly, 

 paid a proportionable price. 



In 



