OLIVEE: MINEKAL SPEIXGS OF THE WEST HIDING. 355 
that in 1854 Proto -chloride of Iron was already mingling with the 
constituents of the water, as determined by previous analysts, and 
raising the relative proportions of the Magnesium and Calcium 
Chlorides, and of the Carbonate of Iron ; but the amount of it was 
as yet insufficient to remove all the Carbonate of Lime, and to 
establish an independent existence in the water. 
When, however, this saline chalybeate was analysed eleven 
years afterwards (1865) by Dr. Muspratt, the long lost Chloride of 
Iron, which had not been encountered for seventy-five years, was 
again discovered — it having found its way into the sources of the 
Chloride of Iron water, and had there at last predominated over the 
earthy carbonates. Then the Calcium and Magnesium Chlorides and 
the Carbonate of Iron were again found, as in 1854, in large pro- 
portions ; and the Carbonates of Lime and Magnesia had vanished. 
This newly acquired constitution of the water has during the past 
twenty years been uninterruptedly maintained ; and will doubtless 
continue so long as Chloride of Iron gains access to the well, in 
quantity sufficient to prevent the appearance of the earthy carbonates. 
The foregoing facts are epitomized in the following table con- 
structed from the data provided by the various analyses. 
IN 100 PARTS OF THE TOTAL RESIDUE. 
Old Sulphur Well. Chloride of Iron Well. 
Sodium Chloride 
1875. 1819, 1820, 1821(2), 1829.* 1854. 1865-6. 1880? 
85 8.7 55.5 44.6 43.5 
8 9.3 30.0 46.8 32.0 
Iron Carbonate 
3.4 
Nil 
1.5 
1.1 
2.6 Nil Nil 
1.6 2.3 2.3 
Parts per cent, of total solid residue. 
Sodium Chloride. 
Calc. and Magn. Chlor. 
Iron Carbonate. 
Hunter, 1819 
Scudamore, 1820 
87 
87 
84 
87 
90 
8.6 
9.2 
11.6 
9.2 
8.3 
1.4 
1 
1 
1 
1.3 
Murray, 1821 
Gamett, 1821 
Hunter, 1829 
* All these analyses provide fairly uniform results. 
