46 THE THERMAL SPRINGS OF SELANGOR AND MALACCA. 



SPRINGS IN SELANGOR. 



Setapak Spring. 



Temperature, ... 47-50° Centigrade (118-122 Fahrenheit), 

 Total solids dissolved in water, 18.35 grains per gallon. 

 Chlorine, ... ... ... 0.4 ,, ,, 



Hardness, ... ... ... 3.6 „ ,, 



Free Ammonia, ... ... 0.036 parts per million. 



Albuminoid Ammonia, ... 0.10 „ ,, ,, 



The quantity of dissolved constituents amounts to 

 parts in 10,000 of the water, viz. : — 

 Calcium Carbonate, 

 Calcium Sulphate. 

 Magnesium ,, 



10108 



Sodium 

 Potassium ,, 

 Sodium Carbonate, 

 Ammonium ,, 

 Sodium Chloride, 

 Potassium „ 

 Lithium ,, 



Sodium Sulphide, 

 Boric Acid, 

 Carbonic Acid, 

 Nitrogen, 



Hydrogen Sulphide, 

 Organic Matter, 

 Silica, 



• 0.23 



• 0.25 

 . 0.014 

 . 0.21 



. 0.08 



• 0.43 



. 0.00108 



• 0.043 

 . 0.005 

 . trace 

 . 0.025 

 . trace 

 . 0.71 



. 0.09 



• 0.034 

 . 0.120 

 ■ Q-859 



3.10108 ,. 



parts in 10,000. 



1 he gases escaping from the spring were collected and 

 analysed, giving the following percentage composition : — 

 Nitrogen, ... 97 %. 



Carbonic Acid, 



... 2.5%. 



Hydrogen Sulphide, 



...0.5%. 



Hydrogen, 



. . . trace. 



Marsh Gas, 



... ,, 



Total,. . . 100.00. 



