264 Analysis of the Mineral Waters [Oct. 
aleohol, in which sulphate of lime being insoluble, the muriate of 
iron only would be dissolved. ‘The alcohol acquired accordingly a 
yellow colour. Being evaporated by a gentle heat, it gave a resi- 
duum which, ona drop of nitrous acid being added, became of a 
deep reddish brown colour, and after being heated strongly, weighed 
0°34 grain. Redissolved in muriatic acid, it formed a rich yellow- 
coloured solution, and. gave a deep colour with tincture of galls. 
Even in this way the whole iron is not obtained ; for the solution 
of the saline matter, though ammonia had been added to it, to pre- 
cipitate the iron, still gave a weak colour with galls. The quantity 
therefore is rather under-rated. ‘Taking the above, however, as the 
proportion, the whole composition will be, in a pint of the water 
of the north spring, 
, Grains, 
buMuriatelof soda: (0 vie. Ve IN Eka DE 
Muriate ofime tone siwe, AS 
Sul phateof dimer. 4b Odo VS BS 
Parhonate of lime 9 058% AEC s Hales PS 
Chxihe ef avon: 6.0/. 0). hi DOS Le, cies Oe 
Analysis of the Water of the South Spring. 
The water of this spring has a taste similar to that of the other, 
but rather weaker: it produces similar medicinal effects. In the 
present state of the spring its strength is more variable, according to 
the state of the weather. From this circumstance, and from its 
being rather weaker, it has probably a greater intermixture of sur- 
face-water, or of the water of other springs. When taken up after 
continued dry weather, it afforded, by evaporation, 42 grains of 
solid matter from a pint; the other affording, at the same time, 47 
grains. Its specific gravity was found to be 1:00419. It was in this 
state, the strongest in which it was found, that it was submitted to 
the following examination. atwhth 
The application of re-agents produced the same appearances as 
with the water of the north spring, indicating, therefore, the pre-. 
sence of the same ingredients. ‘To determine this with more pre- 
cision, and to ascertain the proportions, the same methods of ana- 
lysis were employed which had been used with regard to the other. 
it will be sufficient to state the results by one method—the second 
of those before described. 
A pint of the water was submitted to evaporation, and afforded 
of dry matter, weighed while warm, 42 grains. This was redis- 
solved in distilled water. There remained undissolved a portion 
which, when thoroughly dried, weighed 2°5 grains. This suffered 
a very slight effervescence with muriatic acid, similar to that excited 
in the iasoluble matter of the water of the north spring; a similar 
thin crust, too; had formed on the sides of the glass capsule, which 
was removed with effervescence by a drop of muriatic acid, |The 
