^$0 CHEMICAL EXAMINATION OF A LIQUID 
XXV. — Excmination by Chemical Ee-agenfs of 
a Liquid from the Crater of Vulcano, one of 
the Liipari Islands* 
By John Murray, F.L.S. M.W.S. &c. &c. 
{Read SOth November 1822.) 
This liquid, the Earl of Mountnorris informs me, is 
from the bottom of the crater of Vulcano, one of the Lipari 
Islands, the seat of active fires. 
The liquid is quite diaphanous. Its taste is styptic and 
astringent, and it slightly reddens litmus paper. 
Diluted with distilled water, it was submitted to chemical 
re-agents. 
Lime-water rendered it milky, and magnesia was infer- 
red. 
Oxalate of ammonia produced, after a few minutes re- 
pose, a slight opacity, indicating the presence of lime. 
Solutions of silver determined the existence of muriates. 
Nitrate of haryta exhibited a copious precipitate^ and 
thus shewed sulphates to be present in the solution. 
