[ 74 J 



bufinefs may be executed with the utmofl; 

 facility. 



The method above all others to be re- 

 commended, is that of covered drains. 

 The gentleman fhould contract with a fuf- 

 ficient number of men at Michaelmas^ to 

 complete the whole work by the end of 

 April They fliould be dug of various 

 depths and fizes, proportioned to the 

 length, the wetnefs of the land, and the 

 foil. The following fcales are fuch as 

 frames fliould be made by for the men to 

 work from. See Plate IV. Fig. i. Each 

 to be filled up to the crofs line : if the 

 workmen have a frame of flit deal of fuch 

 fliapes to draw after them through their 

 work, they cannot commit miflakes either 

 accidental or wilful: the depths fhould 

 be varied fufficiently to gain a defcent for 

 the water. They fliould all be filled up to 

 the mark drawn acrofs them in the center. 

 The materials to fill with, mufl: depend on 

 the circumftances of the neighbourhood. 

 If the country be fl:ony, that will be the 

 befl: and cheapefl: to fill with ; in woodland 

 countries, refufe wood and buflies will be 



eafiefl: had : In fome places, bricks will 



be mofl: expedient. In a word, the im- 

 prover 



