T. S. Hunt on the Chemistry of Natural Waters. 193 
Art. XX.— Contributions to the Chemistry of Natural Waters ; b 
T. Srerry Hunt: of the Geological Survey of Canada. 
Il. 
Chemical and Geological Considerations. 
Coyrents or Sxcrioys.—52, salts of alkaline metals, proportion and sources of pot- 
58, potash in a borax lake, in the primitive sea; 54, salts of lime and 
nesia, relations of chlorids and carbonates; 55, solubility of earthy carbon- 
; 56, super-s es of lime ia ; 
ates aturated solutions of carbonates of ] nd magnesia; 57, salts 
f barium strontium, solution of their sulphates; 58, iron, manganese, alu 
mina and phosphates ; 59, bromids and iodids; the small portion of bromine and 
the excess of iodine i ine springs as compared wi ; 60, 
probable relation of iodids to sediments; 61, sulphates, their elimination from 
waters ; 62, olding a soluble sulphuret; 63, es, detection and 
determination ; 64, analysi: rax water from California; 65, carbonates, 
: r f v: 
69, silica, its source and its proportion ; 70, its condition; formation of silicates ; 
i waters here described: 7 
l relations of successive formations 
urces of various classes 
i} 
; 77, association of unlike waters, ¢ n consti- 
tution; 78, te rature of springs ters; 79, ological interest of 
the above analyses ; ble results of the evaporation of these springs ; 80, re- 
lations of mineral springs to folding and to met morphism 81, on the 
2 of strata; 
origin of the p an and sediments; 82, on the 
deposi! 
and t 
chlorid of potassium in modern reads : 
four hundredths of the alkaline chlorids, while in the brines 
from old ro i i 
’ppear, and even predominate, the proportion of potassium = 
y ea Ss ‘ ; 
econ 
wever appear to be an 
alkaline A ga and hak of potassium, since the salts 
the waters first named are more alkaline than those of St. Ours 
Ww ue those of the alkaline water of Joly contain less than one 
Per cent of potassic chlorid. 2 
JOUR. Scr.—Seconp Serres, Vou. XL, No. 119.—Szpr., 1865. 
