172 THE WATT AND THE TEEVITHICK ENGINES. 



that sum, and also give you an order on the adventurers to 

 repay you the whole sum before receiving any part myself. 



" As I have been a bankrupt, perhaps you may scruple on 

 that account, but that business is finally settled, and I have my 

 certificate ; and indeed I never was in debt to any person ; not 

 one shilling of debt was proved against me under the com- 

 mission, nothing more than the private debts of my swindling 

 partner. 



" At Wendron we are working an engine lately erected on a 

 copper lode, which has a very promising appearance, and near 

 this spot you have land at Besperson. where there is also a very 

 kindly copper lode, which deserves trial ; if you are inclined to 

 grant a sett, I think I can find adventurers to join me to try 

 the mine. 



" I have lately read a letter from your hind, that the engine 

 continues to mend ; it far exceeds my expectation. I am now 

 building a portable steam-whim, on the same plan, to go itself 

 from shaft to shaft ; the whole weight will be about 30 cwt., 

 and the power equal to twenty-six horses in twenty-four hours. 



" The only difference in this engine and yours will be the fire 

 in the boiler, and without mason-work, on account of making it 

 portable. I shall pass the rope from the fly-wheel round the 

 cage of the horse-whim. 



" If you should fall in with any West India planter that stands 

 in want of an engine, he may see this one at work in a month, 

 which will prove to him the advantage of a portable engine, to 

 travel from one plantation to another. The price, completely 

 finished and set to work, free of all expense, in London, 105?. 



" I am, Sir, 



" Your very humble servant, 



"Ko. TREVITHICK. 



" N.B. Captain John Stephens informed me, a few days 

 sjnce, that the lead mine at Newlyn was rich." 



In Wheal Prosper Mine the first high-pressure ex- 

 pansive steam-condensing pole-engine had been worked, 

 just before the date of the foregoing letter, and that 



