804 Stedrn Engines in Cornwall'.' 



use of steam of high pressure in engines, or in tlie different ma- 

 nufactures of a country whose prosperity depends so much on her 

 superiority in all the resources of ingenuitv, of enterprise, and of 

 intellect ? 



Who that seeks the welfare of the communitv would lend his 

 aid to stop the progress of British ingenuity and industry, and 

 compel the nation to retrograde in our v;irious arts, by exciting 

 and spreading among the ignorant groundless alarms, instead of 

 feirly informing them of the imprudence and criminal misma-' 

 nagement that have produced the mischief? 



Are all the contrivances and processes which require com- 

 pressed air to be put down, because the air vessel may possiblv 

 be bmst ? — They must, if the use of high pressure steam is to be 

 exploded. 



. Notwithstanding any accidents tliat have yet happened to per- 

 sons travelling by steam vessels, it does not appear that the dan- 

 ger to individuals is greater than in travelling by stage coaches, 

 the mischiefs from which have become so frc'quent as, long ago, 

 to have ceased to excite tliat alarm which is produced by sucli 

 accidents as occur in the use of any powerful agent to which the 

 public attention is called by its novelty and importance in the 

 tiature of things, the accidents tliat have occurred will produce 

 their own remedy ; and any thing like Parliamentary interfe- 

 rence would be so highly injudicious, that it is infpossible to calcu- 

 late or even to foresee the extent of mischief that might thus be' 

 produced to the manufactures and mining interests of the country, 

 as well as to every landholder on wliose estate valuable minerals 

 may hereafter be discovered. 



STEAM ENGINES IN CORNWALL. 



The average work of 26 common steam engines, reported by 

 Messrs. Lean for January, was 2 1, .'339, 431 pounds of water lifted 

 one foot high with each bushel of coals consumed. 



Woolf's engine at Wheal Fanny, loaded 15'4 per square inch 

 in engine cylinder, lifted 35,759,081 pounds with each bushel. 



His engine at Wheal Abraham, loaded 15*1 per inch, and his 

 other engine at the same mine, loaded 3*49, lifted 19,390,201 

 pounds with each bushel. 



Woolf's engine at Wheal Unity, loaded 13-1 per inch, lifted 

 2'9,27 7,600 per bushel. • 



. The Wheal Chance engine, loaded 13'78 per inch, lifted 

 45,791,366 pounds, and the Dalcouth engine, loaded 11'2, 

 lifted 40,723,628 pounds one foot high with each bushel of 

 qoals consumed. 



We have oljserved, in the yinnales de Clumie et de Physique for 

 November last, a notice respecting Woolf's engine. Alluding to 



these 



