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p^Tcndy clcax water had left any fedlment.—* 

 The lowermoft trough, being the laft of the 

 feven, was nearly full of the fined, richeft wharp 

 I ever faw : it was mod like the foft pulpy mat- 

 ter contained in a crab's fliell, I took fome 

 in my hand, and found it as fine as the ground 

 white lead ufed for paint. We then got over 

 a wall into a pafture, where my old friend 

 Ihewed me a valuable land he had made by un- 

 der-draining in the manner before mentioned* 

 He obferved to me, that the upper part gene- 

 rally yielded as much hay as could be drove 

 out with a fey the 3 and that when the water 

 was firft drained from the land, there was little 

 elfe befides nettles and docks. This was at 

 top, where mod of the fediment had lodged. 

 I was convinced that wonderful ufe mio-ht be 

 made of the fprings on the hills, by making a 

 main drain near the fummits, to form one or 

 more refervoirs. Such water would improve 

 the whole farm, and be conveyed fo as to re- 

 frefli any of the padures or meadows at fuch 

 times, and in fuch quantities, as the farmer 

 iliould approve of. He might always have 

 water at command by under-drains, and a re- 



refcrvoir 



