new Sulphur Spring at Harrogate. 87 



The results of the same means, applied to the water of the Old 

 Well, were — of gases in one gallon, 



Sulphuretted hydrogen . 14. Cubic Inches. 

 Carbonic acid . 4. 25 



Azote . . .8. 



Carburelted hydrogen . 4. 15 

 3074 

 Of solid contents. 

 Muriate of soda . 752. 



lime 65. 75 



magnesia . 29. 2 



Bicarbonate of soda 12. 8 



Specific gravity at 60°. 1.01324 

 Saline matter, by direct evaporation, 854.0 

 The most careful examination with tests, prepared by differ- 

 ent chemists, discovered not the least trace of sulphuric acid, 

 or sulphates. 



On adding to equal portions of water from the Old, and that 

 from the New Well, an equal quantity of either acetate or car- 

 bonate of lead, the eye could distinguish a difference in the 

 colour produced, that from the New Well being a shade deeper 

 than that from the Old. 



The most remarkable difference which will be observed be- 

 tween the present and former statements respecting the Old 

 Well (so far as the nature of its contents is concerned), is the 

 total absence of sulphuric acid in any combination. I was so 

 surprised to find this, that I hesitated to admit the inference 

 from my first trials; but with the salts of barytes, prepared by 

 other chemists, as well as with my own, not the slightest cloud 

 was produced. 



Should the observations of any future chemist agree with mine 

 on this point, we must suppose, considering the respectability 

 of those who state the existence of sulphates in the water of thg 

 Old Well (Drs. Scudamore and Ganiett), this to be an esta- 

 blished case of a mineral water varying so much, as at times to 

 exhibit a notable quantity of a substance, at other periods wholly 

 absent. 



