Sxry.—On the Mineral Waters of New Zealand. 447 
This water, it will be observed, contains a notable quantity of carbonate 
of iron, a fact which confers upon it the additional character of a chalybeate, 
and therefore that of a tonic. 
16. Akitio Acidulous Mineral Water. 
This is the last water of the Wellington series I have to describe. The 
sample as received from Mr. Douglas McLean was very turbid, quite taste- 
less, and colourless when clarified. It is largely charged with free carbonic 
acid, and gives no reaction of iodine with the starch test when its salts are 
greatly concentrated. 
The following are the results obtained by its analysis computed in grains 
per gallon :— 
flea .. Ks e» we ee = UE wi 
Iron and alumina i "T NS id sie 93 
Lime .. Ge x m i "a es 18°14 
Magnesia cem e 2» eae ae up tie o> 
Soda with a little potash * ʻi £s rigs e 208 
Chlorine Ps xk "s i os 1:84 
Sulphuric acid  .. i. € Š kx UC CE 
Carbonie acid, combined .. e và a poo M DT 
31:65 
This water is therefore eminently a carbonated one containing lime as 
the principal basic substance of its salts. 
It is decidedly chalybeatic and is very much of the same character as 
the water of Pyrmont (Waldeck) and Recoaro (Venetia). 
17. Nelson. 
The Hot Springs, Hamner Plains, Nelson, were sampled by Mr. W. T. L. 
Travers for the Laboratory, 5th April, 1869. The water is transparent, 
colourless, and tasteless, but decidedly alkaline to test paper even in its 
normal state. A flocculent precipitate had settled, principally silica, 
which amounted to 2:11 grains per gallon. The total of fixed matters 
present was 86:4 grains per gallon. Of this 2-88 grains were silica, the 
remainder being principally alkaline chlorides and carbonates. 
18. Canterbury. 
The water of certain thermal springs at the head of Lake Sumner, 
provincial district of Canterbury, has been partially examined, and with 
the following results :—Reaction faintly acid, colourless, and nearly trans- 
parent; total quantity of fixed matter present to the gallon 18:516 grains, 
which principally consist of alkaline chlorides. Contributor—Dr. Haast; 
date of receipt, 8th October, 1873. 
* Not sufficient water to allow of its determination. 
