STEANGWAYS: HAEEOGATE WELLS. 325 
TABLE 11. 
PERCENTAGE OF FEEE GASES. 
Old 
Sulphur Well. 
Hospital 
strong- Sulphur 
Carbonic Acid 
3.28 
0.09 
Carburetted Hydrogen 
40.00 
Sulphuretted Hydrogen ... 
Trace. 
Trace. 
Oxygen 
Nitrogen ... 
56.72 
99.91 
TABLE III. 
characteristic constituents of the several groups. 
■ Kich 
in 
Less rich 
in 
CLASS I. 
Chlorides 
Sulphides 
Free Gases 
CLASS IL 
Chlorides 
Sulphides 
Free Gases 
Carbonates 
CLASS in. 
Chlorides 
Carbonates 
CLASS IV. 
CARBON- (I^^^ 
^^^^ Imagnesia 
