124 Prof. E. D. Smith, on the Warm- Springs, &/-c. 



Niti'ate of barjtes and carbonate of soda, each occasioned 

 a white cloud. Nitrate of silver made no change. The re- 

 maining solution, evaporated, re-dissolved and tested in a 

 similar manner, shewed the same results. The inference 

 then will be, that this solution contained sulphate of lime 

 chiefly, with a trace of sulphate of magnesia. 



11. The residue of one to two grains, being very light 

 and bulky and of a dark ash colour, was moistened with 

 water and exposed to the sun's rays, but after a day or two 

 was accidentally lost. 



In making up the nummary of the preceding analysis, it 

 may probably be stated as follows. 



In the alcohqiJic solution (3) are present 

 Muriates of lime and magnesia. 



In solution (7) Sulphate of magnesia, 



By solution (9) Sulphate of hme in 17 gr. 

 Insoluble residue, 

 Loss, 



4 gr. 



6 gr. 



14| gr. 



1 gr. 



From three quarts of water, 28 gr. 



It will be observed, that the results of the analysis of the 

 fixed product denote the presence of the same substances 

 as were detected by the humid analysis, and thus the one 

 confirms the correctness of the other. The nature of these 

 mineral waters, having been thus ascertained, it becomes an 

 interesting i^iquiry, whether they can probably exert much 

 efiect upon the constitution. The great bulk of their in- 

 gredients would appear to be very inert, unless, according 

 to the opinion offered by Dr. Murray, in his excellent analy- 

 sis of the Dunblane and Pitcaithly waters, the process oc- 

 clasions a diiferent combination of ingredients from that 

 which originally existed, and then the muriate of lime, which 

 is an active substance, would be present' in a much lar- 

 ger proportion than appears from the analysis. Persons 

 using these waters, are in the habit of drinking from three 

 to four quarts in a day, and also of bathing twice. They 

 generally remain in the bath from a half hour to an hour, 

 and find it so pleasant, they are loth to leave it. It was sta- 

 ted to me by a very respectable gentleman, who has resort- 

 ed to this watering place, fer several summers past, that af- 

 ter drinking the water freely for several days, it generally 

 had a brisk cathartic effect for a day or two, and after that 



