318 On the Waters of the Dead Sea. 
niacal solution of chloride of calcium, when, in the latter case, 
care was taken to add previously a sufficient quantity of 
muriate of ammonia, to prevent the precipitation of the mag- 
nesia. Consequently, only the faintest traces of carbonic 
acid or carbonate of lime were present. 
The chloride of gold test of Dupasquier gave unmistakeable 
proofs of the existence of an abnormal proportion of organic 
matter. Other reagents shewed that it likewise contained 
magnesia or magnesium, lime, alumina, the oxides of iron, 
and manganese, soda, potash and ammonia; also chlorine, 
bromine, and sulphuric acid, with traces of silica, bitumen, 
and iodine. The latter occurred only in exceedingly minute 
proportion. 
From the careful analyses of Messrs Thornton and Hera- 
path, the specimen of the water of the Dead Sea, collected by 
Mr Monk, gave the following result :— 
Chloride of calcium . : : . 2°455055 per cent. 
Chloride of magnesium . : ; 7°822007 
Bromide of magnesium . : : 0°251173 
Iodide of magnesium : 3 : doubtful traces 
Chloride of sodium . : : -  12°109724 per cent. 
Chloride of potassium : : : 1:217350—-- 
Chloride of ammonium. ; 5 0-005999 
Chloride of aluminum. = ; 0°055944 
Chloride of manganese. : : 0:005998 
Chloride of iron . : : 0:002718 
Organic matter parame 5 ? : 0:061730--- 
Nitric acid. : : : R very doubtful traces 
Carbonate of lime . : : ; faint trace 
Sulphate of lime. : : : 0067866 per cent. 
Silica. : : : : traces 
Bituminous matter . : : : ditto 
24°055564 
Total amount of salt. as determined by 
actual experiment . : - 24048330 
