[ 26, ] 



there, mark a new channel into the Med- 

 locky and a fubterrane to another well. 



As the depth of water upon L is only 

 fifteen inches, it certainly would be no dif- 

 ficult matter to effedl this addition; the 

 water might eafily be fenced out by ma- 

 fonry, around a fpace to work in, and the 

 pafTage might be carried on, and arched 

 under ground. 



Another point, in which thefe works 

 fell fhort of expedlation, is the effedt of the 

 fubterraneous drains ; it was imagined, 

 that the fuperfluous water through thofe 

 drains, would, at all times, freely flow into 

 the Medlock at U j but inftead of that, the 

 water of the Medlock as often flows into the 

 drain, which has very bad confequences, 

 for it totally counteradls the very principles 

 of a drain, and likewife flows back fo 

 ftrongly upon the water-wheel which 

 draws up the coals through the well E, 

 that the power of the wheel is greatly im- 

 peded, infomuch that the work of drawing 

 up the coals, which can, at very low 

 water, be done at the rate of a boat load in 

 twenty or twenty-five minutes, takes forty- 

 five when the water is high : or, in other 

 words, encreafes the labour fifty -^er cent, 

 S 1 This 



