THE miners' friend. 201 



Station, and then you will have Occasion for no more than 

 two Engines ; the iireatei<t of which may be removed as soon 

 as the Hinallcr is fixed in the lowest or proper Station, And 

 that you may he convinced of my Impartiality, it is my 

 Opinion, That in gaining' an Old Wor/c, or sinking a JVew 

 One, you use your 0/d Engines of Tub or Chahi-PuiirpK : This 

 Engine of mine being most proper, when you are come fairly 

 to the Bottom either of the Oar or CoaJ : For then, if you 

 have but one Lift, one Station or £nf/ ine -Hoom. will be 

 sufficient. And by having two Sumps or Bottom Cisterns, 

 your Water may in some measure settle in one of them, in its 

 passage to the other. So that the Miners working tolerable 

 clean, and suffering as little dead or loose Coal or Oar, as is 

 possible, to mix with the Water, you may have the Water 

 to draw only a little discoloured; for j-ou know as well as I, 

 that generally the Water coming from Mines or Coal-Pits, while 

 they work by the Gins now in use, is almost clear Water. 



Miner. Sir, I thank you for your Candor in relation to 

 the clearing of an Old Work. But supposing that our Water 

 arises thick and muddy, which you know will some times 

 happen, what shall we do with your Engine then ? 



Author. What you say Sir, I know to be very true, that 

 some times you have thick muddy Gravel and nasty water. 

 To prevent which from coming in to, or offending our Pipes, 

 we have a Frame of Board made full of Holes round about 

 the Bottom of our Pipe, that receives the Water ; for Sluge 

 or fine Dirt, it will do my Engine no Injury. Indeed the 

 clearer our Water is in our Boylcrs, the letter it is for our 

 Wurk ; but for our Receivers and their Clacks, you may clear 

 them as you Work it, from Stones, Coal, Oar, or any other 

 Anoyance, though hung in the very Clack ; for by emptying 

 of one or both the Receivers of their water, you cause the 

 Motion, either of Suction or Force, immediately to be so 

 strong, as to clear and blow out all before it to the Top of the 

 Pit Insomuch that I have found Filings of Copper, large 

 Bits of Metal, considerable Quantities of Coal and Stone, 

 delivered and thrown up with the Water out of my Engine 

 above sixty foot high. However, clear Water is preferrable 

 before the dirty Water in the Jrurk of mine Engine. 



