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of purchasing, importing, and erecting the steam-engine in tin- 



celebrated rich and royal mineral territory, called ' The Moun- 

 tains of Yauricocha,' in this province of Tarma, of which I have 

 the honour to be Governor, the chief and valuable works of 

 which have ceased to produce ore, in consequence of their bases 

 being completely submerged in water. 



" The day is arrived when we witness with admiration the 

 advantageous and useful effects of the before-named steam- 

 engine; the completion of the promises made by the generous 

 and undaunted individuals who united themselves to supply 

 the funds sufficient for the realization of an enterprise so 

 important, and the fulfilment of the wishes of these valuable 

 subjects, to render to the State the highest possible service ; a 

 service, although at all times of extreme importance, at this 

 crisis is infinite ; because the State, being weakened by a 

 series of disastrous events for six years past, requires salutary 

 remedies ; and none exist so effectual as the re-establishment 

 of the mines, which the steam-engines are achieving. 



" After some experiments, which (although they left no 

 doubt of ultimate success in draining- the mine) discovered 

 some slight defects, these were corrected on the 23rd instant ; 

 and this day the first of the four pumps which arrived for the 

 use of the royal mines was erected in the particular mine called 

 Santa Kosa ; the result of its operation has been the exhaustion 

 of the water from the well or hollow below the adit. In twenty 

 minutes, by this engine, an aggregate of water is ejected 

 amounting to 6 yards or 18 feet in diameter, 3 yards 24 inches 

 in length, and 1 yard 30 inches in breadth. In the same 

 manner a second engine, accessory to that which drains the 

 wtiter, is worked by the same steam, on the same point, and in 

 the same perpendicular shaft, from the surface of the earth, 

 which extracts the ore, and with advantages hitherto unknown 

 here, on account of the considerable saving of expense and the 

 economy of manual labour. 



" The steam-engine will continue evacuating the water from 

 the pit until it is reduced to 6 yards below the old adit, whence 

 they must eject the water raised by the engine by a continued 

 elongation of the barrel of the pump gaining depth, until they 



