426 



Transactions.— Chemislnj. 



taken by the local press at the time of its collection. It is from a spring at 

 Hikutaia, Puriri, provincial district of Auckland ; collected and contributed 

 by Mr. Eobert Kelly, on whose property it is situated, and was received at 

 the laboratory on January 5, 1873. AVaters of this kind are chemically 

 distinguished by their more or less caustic taste, which they owe to the 

 large quantity of fixed carbonated alkalies (principally of soda) that they 

 contain. 



They are used medically for the cure of gravel, kidney diseases, gout, 

 acidity of stomach, etc. 



The value of this water medicinally, as alleged by the Maoris, is no 

 doubt due to the large amount of carbonate of soda which it contains, as 

 iodine only exists in very small quantity, and I have not succeeded in 

 determining the presence of any other substance known to possess (as a 

 component of mineral waters) specially medical qualities. 



In the annexed analysis the composition of the fixed matters present in 

 one gallon of this water is stated in grains : — 



Soda .. .. .. .. ., 199010 



Potash 



Lime 



Magnesia 



Iron 



Silicic acid 



Sulphuric acid 



Carbonic acid 



Phosphoric acid 



Chlorine with iodine traces 



2-587 



11-088 



8008 



traces 



2-772 



2-903 



300-438 



a little 



13-313 





of being arranged as fo! 



ows . 



540-119 



These constituents permit 



— 



Chloride of sodium 







21-938 



Iodide of magnesium 







traces 



Sulphate of soda 







•940 



„ potash 







4-938 



Carbonate of iron 







traces 



Bi-carbonate of lime 







28-50G 



,, magnesia 







25-625 



,, soda 







452-393 



„ lithia 







traces 



Silica 







2-772 



Phosphoric acid 





not d 



etermined 





537-112 



