Skey. — Ov the Mineral Waters of New Zealand. 



425 



contributed by Mr, Hugh Carleton on the 8tli June, 1869, has a weakly 

 acid reaction. It has a strong odour of sulphuretted hydrogen, and is 

 slightly turbid from the presence of liberated sulphur. A slight sediment 

 had formed in it, ■which was separated from the portion analyzed. 



The following is the amount and composition of the soluble matters 



ea ni one gallon oi it : — 





Protoxide of iron 



2-23 



Lime ■ . . 



5-97 



Magnesia 



1-15 



Snica , , 



3-10 



Sulphuiic acid , , 



, 18-60 



Hydrochloric acid " 



. 66-91 



Sulphuretted hydrogen . , 



traces 



Fixed alkalies , , 



. 41-66 



Ammonia 



traces 



Organic matter . . 



.. 





134-62 



This water is evidently an acidulous one, and is a moderately strong 

 chalybeate, I have not heard of its being medically tested, but it certainly 

 should ]possess some therapeutic virtue. 



A deposit formed by these springs has been also examined ; it is a 

 chocolate-coloured substance possessed of moderate coherence, and is 

 spangled throughout with minute crystals of sulphur ; reaction strongly 



acid. 



Approximate Analysis. 



Sulphur ,, ,, .. .. .. .. 83-87 



Siliceous matter . . . . . . . . , . 16-33 



Soluble salts and acids . . . . . . . . -30 



100-00 



The soluble part when analyzed proved to be composed as follows :— 



Sulphate of alumina 



,, iron 



Sulphate of lime with a little sulphate of magnesia 

 Free hydrochloric acid 



,, sulphuric acid 

 Alkaline sulphates and loss 



52-43 

 traces 

 27-60 

 traces 

 11-32 

 8-65 



100-00 



4. Alkaline Water. 

 We now arrive at a water of a different kind from any of the 

 preceding. It is an alkaline mineral water, and great interest in it was 



c2 



