C. Analysis by Mr. H. Rocholl of sample obtained by Mr. H.
Stonehewer Cooper probably in 1877 or 1878.[[26]]
| Total | solids | at 212° F. | ·8796 | per | cent. |
| " | " | ignited | ·7726 | " | " |
| The residue consisted of— | |||||
| Free Sulphuric Acid (SO3) | ·0049 | " | " | ||
| Calcium sulphate | ·0260 | " | " | ||
| Calcium chloride | ·4355 | " | " | ||
| Magnesium chloride | ·0021 | " | " | ||
| Potassium chloride | ·0415 | " | " | ||
| Water | ·1070 | " | " | ||
| Sodium chloride | ·2641 | " | " | ||
| ·8811 | |||||
D. Analysis by Prof. Liversidge of the Sydney University of a sample of the water collected by Dr. Bromlow, R.N., about 1879.[[27]]
The specific gravity was 1·0064 at 60° F. The total solids in solution were 582·4 grains per gallon; but when heated to a dull red heat, the residue was 546·9 grains per gallon, the combined water having been driven off. Iodine and bromine were carefully sought for, but in vain. Four pints of the water were examined.
Composition.
| Per cent. in residue. | Parts per million of water. | Grains per gallon. | |
|---|---|---|---|
| Silica, insoluble | 1·681 | 133·3 | 9·20 |
| Silica, soluble | ·074 | 5·8 | ·40 |
| Alumina and traces of Iron sesquioxide | ·534 | 41·7 | 2·92 |
| Aluminium chloride | 1·646 | 128·6 | 9·00 |
| Phosphoric acid | traces | traces | traces |
| Calcium chloride | 46·754 | 3,652·9 | 255·70 |
| Calcium sulphate | 4·770 | 372·7 | 26·09 |
| Magnesium chloride | ·154 | 12·0 | ·84 |
| Sodium chloride | 42·171 | 3,294·8 | 230·64 |
| Potassium chloride | 1·756 | 137·2 | 9·60 |
| Carbonic acid | traces | traces | traces |
| Loss | ·460 | 34·0 | 2·52 |
| 100·000 | 7,813·0 | 546·91 |
Looking at the general character of these thermal springs of Savu-savu we may quote the remarks of Prof. Liversidge and Dr. Pieper that the salts in solution consist for the most part of chlorides, the chlorides of calcium and sodium largely prevailing.
Comparison of the analyses of the water of the Savu-savu thermal
springs, stated in grains per thousand of water.[[28]]