192 THE MINERS FRIEND. 



Clachs, Boxes, and Miter-Pipe, Regulator and Codes, are all of 

 Brass ; and the Vessels made of the best hammered Copper, 

 of sufficient thickness to sustain the Force of the Working 

 the Engine. In short, the Engine is so naturally Adapted to 

 perform what is required, that even those of the most 

 ordinary and meanest Capacity, may work it for some Yea/rs 

 without any Injury, if not hired or imployed hy some base 

 Person on purpose to Destroy it. For after the Engine is once 

 fixed, and at worh, I may modestly affirm that the Adventurer, 

 or Supervisor of the Mine, will be freed from that perpetual 

 Charge, Expence and Trouble of Repairs, which all other 

 Engines ever yet imployed in Mines for the Raising of Water, 

 are continually liable unto. 



Chap. II. 



OF THE USES THAT THIS ENGINE MAY BE 



APPLIED UNTO. 



It may be supposed that there are few People among us so 

 ignorant, but must necessarily know of what value the Falls 

 of Water are in most Places, as being applivahle to Mills ; 

 which are made after various Kinds and Forms, according to 

 the different Grenius and Abilities of the Mill-right ; for Mill- 

 work being in a manner infinitely diversified ; and had I 

 leisure to Comment thereon, and give you an Account, not 

 only of the vast variety that I have seen and heard of ; but 

 (when incouraged) what may yet be brought to ivork by a 

 steady Stream, and the Rotation or Circular Motion of a 

 Water-wheel, it would swell these Papers to a much larger 

 Volumn than was at first designed, and frustrate my intended 

 Brevity. I only just hint this to shew what Use this Engine 

 may be put to in working of Mills, especially where Coals 

 are cheap. 



I have only this to urge. That Water in its Fall fi-om any 

 determinate Height, has simply a Force answerable and equal 

 to the PWce that Raises it. So that an Engine which will 

 Raise as much Water as two Horses, working together at one 

 time in such a work, can do, and for which there must be 



