444 Transactions. — Chemistry. 



In obtaining these data, I nnfortunately exhausted my stock of this 

 water. 



12. Water from spriwj on ivest side of Waikato Paver. 



A water from a hot spring near a lake on tlie west side of Waikato 

 Eiver, Auckland, contributed by Mr. Justice Gillies, 23rd September, 

 1868, is clear, of a decided alkaline reaction, contains 47*04 grains of fixed 

 matters to the gallon consisting principally of alkaline chlorides, the 

 remainder being chiefly silicate and sulphate of Ume with alkaline car- 

 bonates. There was not sufficient of this sample to allow of a complete 

 analysis of these fixed matters. 



The following is Captain Hutton's description of this spring — " It was 

 about four miles from Lake Wangape in the Waikato. There were several hot 

 springs close together, but this was the largest of them being fifteen yards 

 long by five yards broad, and it was very deep ; the water was so hot that it 

 was impossible to bear the hand in it for more than a second, and on one 

 occasion when he was in company with others, having caught a j)ig for 

 dinner, they fastened it with flax and threw it into the spring, and on taking 

 it out it was perfectly scalded and they had no difficulty in scraping the 

 hair off; the temperature of the spring was from 160° to 200° Fahr. at the 

 very least. The water itself was almost tasteless ; he had drunk it himself. 

 He thought it was the carbonate of sodium which gave it an alkaline re- 

 action. What its effects would be as a mineral spring he could not say; but 

 it was easy of access ; was very prettily situated, and was not more than 60 

 miles from Auckland, and he trusted that some day it would be called into 

 use."* 



13. Wallingford Mineral Water. 



The first water which I have to notice, as coming from the provin- 

 cial district of Wellington, is one from Wallingford; contributed 15th 

 June, 1866. As only a few ounces of it were at my disposal, I have only 

 been able to determine its character and the proportion of the saline 

 matter contained therein. It is faintly acid ; has a pure strong saline taste, 

 and is somewhat turbid from the presence of alumuaous substances. The 

 total quantity of fixed salts present in a gallon of it is 826 grains. They are 

 mainly composed of alkaline and earthy chlorides. There are present also 

 traces of certain bromides and iodides. 



Dr. Grace subsequently handed in a water from about the same locality 

 as the above. The two are similar, but the former is the richer in ioduie. 

 14. Mineral M'ater of Pahua. 



a. This is from a spring on Mrs. Sutherland's run, and is remarkable 

 for the quantity of iodides and the comparative paucity of sulphates therein, 



* Trans. N.Z. Inst., I., p. 71, ed. I. 



