f -5 3 



iiand, if the drains were drawn acrofs the 

 defcent upon right angles, and a dead le- 

 vel, they would of courfe remain full for 

 want of a free difcharge, and not have 

 their proper efFedl. A little fall mufl be 

 allowed ; but, the lefs the fall, the greater 

 will be the duration, as the drains will 

 not fo foon choak up, by the wafhing in 

 of the foil. This method of draining 

 feems to be the moft excellent, upon 

 fpringy land. I fubjoin a fketch of the 

 ufual way of opening thefe drains, marked 

 N°. I. 



There is a method of covered-draining 

 with ftones pradifed in fome parts of 

 Somerfetjhire, and TViltJhire, which is very 

 expenfive compared with that in Effex, 

 but then its duration is much longer; for 

 when it is well executed, the farmers 

 think it completed for ever. Lord JVey" 

 months extcnfive park, at Longleat, has 



been 



