MINERAL Sl'KINc, AT RIETFONTEIN. 



5^7 



water determined above. It was calculated that 100,000 c.c. of 

 water contain 0.027477 of a tjram of snlphnrette<l livdrogen. 



Tai'Le of Re.sl'lts I.N (Irams pf.k 100.000 



Saline Constituents. 



Sodium chloride 



Calcium chloride 



Silica 



Calcium bicarbonate 



Lithium chloride 



Magnesiimi chloride 



Ammonium bicarbonate 



Calcium sulphate 



Alunu'nium oxide 



Barium sulphate 



Ferrous bicarbonate 



Sodimn nitrate 



Gases. 



Oxygen 



Carbon dioxide 



.Sulphm-etted h^ydrogen (?) 



c.c. o 



F Water. 



189.081 5 



■24 .^-'33 



2.1858 

 2. 1060 

 o . 4202 

 0.3109 

 0.2730 

 0.2499 

 o. 1610 

 o. 1256 

 o. 1064 

 0.0521 



o . 06 1 5 

 0.324T 

 0.0275 



SPECTROSi'dlMC [examination OF Soi-I!) KkSIPL'K. 



Spark 



FJemcnt or 

 com])ound identified. 



Lithium 670.8. 

 Hydrogen ( C) 656 . 3 



Calcium chloride. 



Lithium 610.3. 



j' Sodium D. 



.Sodium 568.3. 

 Calcimn chloride. 

 Sodium 515.4. 

 Calcium chloride. 

 Lithiiuu ( ?) 460.2. 

 In addition a large number of evanescent 

 green bands and lines were observed. 



The residue from three litres was used. The figiu-es in the 

 third column are taken from a catalogue of spectra. WHiere no 

 values are given {e.</., calcium ch.loride ; the identification was 

 effected b}- com])aring the s])ectrum of the salt in the third column 

 with that of the saline residue. No ])otassium. rubidium, or 

 caesium lines were found in the s])ectrum, and no ])recii)itate was 

 obtained with platinum chloride from the solid residue of three 

 litres. 



