50 the thermal springs of selangor and malacca, 



Dusun Tua Spring, 



Temperature, ... 45-50 C. (122 F.). 



Total solids dissolved in water, 15.4 grains per gallon. 



Hardness, ... ... 2.3 ,, ,, 



Chlorine, ... ... 0.25 ,, „ 



Free Ammonia, ... ... 0.04 parts per million, 



Albuminoid Ammonia, ... 0.03 ,, ,, 



Constituents contained in 10,000 parts of the water: — ■. 

 Calcium Carbonate, ... 

 Sodium ,, 



Ammonium ,, 

 Calcium Sulphate, ... 

 Sodium ,, 



Magnesium ,, 

 Potassium ,, 

 Sodium Chloride, 

 Potassium „ 

 Lithium „ 



Sodium Sulphide, 

 Hydrogen ,, ... 



Boric Acid, 

 Carbonic ,, 

 Nitrogen ,, 

 Organic Matter, 

 Silica, 



Gases escaping from Spring. 

 Nitrogen, ... ...96.5% by volume. 



Carbonic Acid, ... ... 2.9 ,, 



Hydrogen Sulphide, ... ... 0.4 ,, 



Hydrogen and Marsh Gas, ... traces. 



Composition of Air close to Spring. 

 Nitrogen, ... ... 79.04 



Oxygen, ... ... 20.91 



Carbonic Acid, ... ... 0.05 



Total,... 100.00 



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