Mineral Waters at CJieitenham. 211 



small quantity of water, and digested in that fluid succes- 

 sively. It yielded seven grains of muriate of soda. These 

 being dissolved, and added to the fluid from which they were 

 obtained, and sulphate of silver dropt into the solution, the 

 muriate of silver produced weighed 1 16 grains ; indicatino- 

 50 of muriate of soda, of which 6*25 are contained in one 

 gallon of the water. 



Experiment XI. — The insoluble residue left, together 

 with that obtained in Experiment VIII., being boiled in a 

 Florence flask with a large quantity of water, became dis- 

 solved, and yielded by evaporation to dryness 17 grains of 

 sulphate of lime; of which 2i were therefore contained in 

 one gallon of the water. 



The aeriform products of this spring being ascertained by 

 the usual methods, which are unnecessary to be detailed, 

 231 cubic inches of it yielded 14-7 of carbonic acid gas, and 

 3-9 atmospheric air. 



From these inquiries it appears that the composition of 

 the Carbonated Steel Well is as follows : 



Carbonate of iron 

 Carbonate of lime 

 Muriate of soda 

 Muriate of lime - 

 Sulphate of lime - 



1-3 



2-6875 



18-6 



2-3250 



ANALYiilS OF THE WEAK SULPHURETTED 



SALINE WELL. 

 The water of this well resembles that of the Strong Sul- 

 ^' 2 phureited 



