272 Mineral Waters of Canada. 
1000 parts of the water of the sulphur spring gave :— 
‘ ; ; «Al 
Chlorine, . , 2500 
Bromine, . ‘ : , ‘ = ORTSS 
Iodine, i ae eee 
Sulphuric acid, . : ‘ ‘ . 01030 
Potash, : ; : ' (ae “Obie 
Soda, : : j 3 ; .- = 2-12370 
Limes oe ena es ‘ : : . ‘11760 
Magnesia, : a a oa 14230 
lron, . ‘ j tert, iettaces; , 
Alumina, . ‘ ' . 3 ‘ 00265 
ilica, . 7 ’ ; : 08400 
Carbonic acid, . , ; : i “59000 
These combined in the usual manner, give as the composition 
of 1000 parts of the water :— 
Chlorid of sodium, |. inhi . 3°84300 
“ of potassium, ; : ; 02300 
Bromid of sodium, s ; , . 01004 
lodid of sodium, , ‘ ; traces, 
Sulphate of soda, . . ‘ ‘ ‘01833 
Carbonate of soda, _ . ‘ F . ‘A5580 © 
a of lime, ; ; ‘ . ‘21000 
“ of magnesia, . " ‘ 29400 
ie of iron, : . . traces, 
Alumina, é Aen : 00265 
ili ‘ ‘08400 
Carbonic acid, . ; ‘14100 
‘ ; 994-91818 
1000-00000 
The amount of solid matters in 1000 parts of the water 1s 
4:9406. & 
The quantity of carbonic acid over that required to form neu- 
tral carbonates, would in a gaseous state equal 7:2 cubie inches 
in 100 of the water. The amount required to form the above 
carbonates is ‘449, and an equal quantity of carbonic acid would 
be necessary to enable them to exist as bicarbonates, a condition 
in which these earthy bases are generally regarded as being dis- 
solved in mineral waters. The whole of these alkaline waters 
have shown, it will be observed, a deficiency in the quantity of 
earbonic acid, and this is particularly marked in this last and 
most strongly alkaline of them all. This apparent difficulty 3s 
at once explained by the fact that the whole, or a part of the 
carbonate of magnesia, exists in the form of a double carbonate 
magnesia, a compound which is readily soluble 12 
water and much more permanent than the bicarbonate os 
