at leaft in a country abounding with long 

 heather. A fmall quantity of the heath may 

 be put in the bottom of the drain, and co- 

 vered over. The water would pafs freely un- 

 der the heather ; and perhaps, when thus co- 

 vered from the air, the heath would not be 

 confumed in lefs than forty or fifty years. If 

 this method is ufed, the drains need not be fo 

 large as the open ones above defcribed. But 

 the number muft be greater; perhaps two 

 for one, or more. 



Eftimate of expence for draining a mofs one 

 mile fquare, with open drains, and divid- 

 ed into lixteen inclofures. 



Three thoufand rood of ditching, at is. per 



rood * - - L. 150 o o 



Paring and burning 540 acres, 



at 2 os. per acre 540 o o 



For feed, (either oats or barley) 



at half a boll per acre, 270 



bolls, at 153. per boll. 202 10 o 



Le veiling, grafs-feed, and v.nfore- 



feen- incidents 100 o o 



L. 992 TO o 



