cm 
by B. er New Picaun for detecting iodine and Bromine, by 
Oe: the amount of Ammonia contained in the Atmos- 
; 1h ELLER, ¥ ence 
of the Firt} cf Porth, the Firth of Clyde, and the Ger 
.D., 118.—On the Artificial Production of cer- 
ly Oxyd of Tin, gs of Titanium, and 
the Origin of the Titaniferous veins of 
