544 M f NEVEN ON THE MINERAL WATER 



may be desirous of re-examining the same subject ; and the mode I 

 adopt must be preferable, with the generality of persons, to a bare state- 

 ment of results, without any view of the successive steps by which they 

 were obtained. 



ANALYTICAL EXAMINATION. 



The gentleman, whose case follows, while residing at Schooley'g 

 Mountain, evaporated, at my request, a portion of the water according 

 to directions I left with him for that purpose, and transmitted to me, as 

 the residue, a brown, light powder, which weighed 16.50 grains. I 

 subsequently procured a few bottles of the fresh water, carefully filled 

 and corked at the spring, and tied over with wet bladder, from which I 

 determined the proportions of its gaseous and solid contents. 



Examination of the gaseous constituent part. 



The water, as it issues from the rock, is nowise sparkling, it has no 

 pungency, and manifestly holds whatever gas it contains, in a state of 

 combination. Being forced for the purpose of examining it to use 

 a water cistern, I heated this to one hundred and thirty degrees of 

 Farenheit's thermometer, and separating, as atmospheric air, an amount 

 equal to the capacity of that portion of the retort unoccupied by the 

 fluid, I obtained from fifty-seven cubic inches of the mineral water, 

 nineteen cubic inches, nearly, of a gas, the whole of which was absorb- 

 ed by lime water ; so that the mineral water yielded a little more than 

 one third of its bulk of carbonic acid gas. 



