( 3« ) 



Icrvoir. A very final 1 fluice at the top of the 

 under-drains would fliut and open, to let the 

 water run, or flop it, A little lower down, by- 

 way of fence, another refervoir nnight be form-^ 

 cd, and by fuch means improve the whole 

 eftate. In fhorr, I never faw any eflate fo eafi- 

 ly to be improved, or fo much to be increafed 

 in value by a trifling expence. But there are 

 thoufands of acres in the fame fituation. 



In Craven, as well as the North Riding of 

 Yorkfhire, and in Lancafhire, many eftates may 

 be improved in the fame way. 1 have not yet 

 {cQn this method pra6lifed there ; though fo 

 many thoufands of acres are nearly fpoiled by 

 water. 



With refpe6l to the method of making under- 

 drains, I muft add, that where neither fwards nor 

 flones are to be had, ofiers laid in them green 

 are good fubftitutes, and will Lft an almoft in^ 

 credible time, if kept covered from the external 

 air. I have feen ofiers taken up fome years af- 

 ter they had been depofited in tlie ground, and 

 the bark was as frefh as if they had been jud cut» 

 I repented I did not fet one, to try whether it 

 would grow* Almofl: any thing put in green 



will 



