84 



Our steam - baths being a new institution, I shall 

 give summarily the result of my observations during 

 the seven years of their existence. 



The vapour, rising so copiously from our wells, 

 had never been examined before. We are indebted 

 for its first analysis to Mr. Nentwich , apothecary 

 at Carlsbad, who undertook it, at my request, before 

 they were opened to the public. 



"The vapour of the Hygiaea- spring, taken in the 

 "apparatus standing the nearest of the square channel, 

 "through which it rises, gave, on the 20th of De- 

 Member 1826, with an external atmospheric tempe- 

 "rature of -f- 5 R., the following result: 



1. "The temperature within the closed apparatus was 

 _!_ 36 R. 



2. "100 parts of vapour, -f- 36 R. , cooled to -f- 

 "5 R. , were reduced to 83,333 parts of space, 

 "and that gaz was composed of 4,183 parts of 

 "carbonic acid gaz and of 79,150 parts of atmo- 

 "spheric air. 



3. "The water, under the form of drops, is, with 

 "the exception of a little carbonic acid gaz, en- 

 tirely free from saline parts." 



We see , therefore , that the Carlsbad vapour is 

 composed of atmospheric air, carbonic acid gaz and 

 aqueous vapour. 



One might be inclined to question the powerful 

 effects of such a simple mixture , entirely free from 

 fixed particles 5 that power, however, will be more 



" 



