SPRINGS, 



429^ 



cessary being merely to make the dough with flour 

 and this water alone, and it is immediately ready to 

 put in the oven. 



A lighted candle let down in the crater of the rock 

 was immediately extingtdshedy both blaze and wick, 

 before it came within a foot of the surface of the wa- 

 ter ; the air obtained by agitating the water of this» 

 as well as the other springs, was equally incapable of 

 supporting combustion, as well as that collected 

 from the bubbles, that were continually discharging 

 from the different springs, 



A chicken being immersed in this air, expired in 

 three minutes. A kitten confined in it for one and 

 a half minutes, appeared very flaccid and almost 

 dead: yet, on being brought out, into free atmos-^ 

 pheric air, its fleeting life was soon recalled through 

 the medium, of convulsions ; being again put into the 

 noxious gas, in fourteen minutes it was irrecoverably 

 dead. 



The air being made to pass through lime water, 

 immediately rendered it very turbid. 



It rendered a diluted tincture of turnsol of a redt 

 tinge by passing through it. 



From the physical qualities mentioned, and from 

 the above experiments, we may safely conclude that 

 this air . is the true spiritus mineralis oi Hoffman, 

 the carbonic acid gas of the French chemists, the 

 arial acid of Bergman, the fixed air of Priestley and 

 Black, the cretaceous acid of Fourcroy, and what is 

 generally known with the miners, by the name of 

 choak damfi ; it is similar to the noxious gas, which 

 rise? up to tlie height of several inches in the famous 



PR 



