202 THE musters' friend. 



Miner, But dear Sir, if 60, 70 or 80 foot he the Deter- 

 minate Height for Eaisiiig of Water by your Engine, How 

 shall we Use your Engine in a Mine or Pit, that requires 

 loater to he raised three times 80 foot, as you know some of 

 our Works do. 



Author. I heartly thank you Sir, for this last Proposal, 

 because I have now an Opportunity to acquaint you. That 

 the Force used in my Engine is in a manner Infinite and 

 unlimited, and will Raise your Water 500 or 1000 foot high, 

 were any Pit so deep ; and that you could find us a way to 

 procure Strength enough to Support such an Immense Weight, 

 as a Pillar of Water a thousand foot high must certainly 

 produce. However, to give you an Anstver, I must intreat 

 you to give my Engine as kind Entertainment and fair 

 Quarter, as you do to gour Engines now in Use : For I am 

 sure you are not ignorant of a Custom used in very deep 

 Mines, (in several parts of England) of Raising their Water 

 by several Lifts, from Cistern to Cistern, to a very great 

 Height ; although some of their Lifts may not be above 

 twelve, sixteen, or twenty foot a Lift at the most And sup- 

 pose that your Engine now in Use at twenty foot the Lift, 

 and my Engine at sixty, seventy, or eighty foot, for at any of 

 these Lifts we Raise a full bore of Water with much ease. 

 Then one Lift of my Engine at sixty foot, answers to three 

 Lifts of your Engines at twenty foot, and also to four of 

 your Lifts at eighty foot, ^c. which you may please to take 

 for a sufficient Answer to your last Objection. I have 

 known in Cornwall a Work with three Lifts, of about eighteen 

 foot each Lift, and carrying a '6\ Inch-bore, that cost 

 forty-two shillings per diem, reckoning twenty-four hours 

 the day, for Labour, besides Ware and Tare of Engines ; 

 each Pump having four Men working eight hours at fourteen 

 pence a Man, and the Men obliged to Rest at least \ part of 

 that time. 



Miner. You have Sir, hitherto given me undeniable 

 Answers to my former Objections, for which I thank you ; 

 but I fancy I shall puzzle you, when I ask you how you 

 will Manage your Engine to draw up our Water? where the 

 Shafts are not Direct, but turn and ^vind to and fro. 



