50 
SALOON. 
Nat. Hist. 
In this case are also placed the ores of colum- 
binm or tantalum, of yttria and of cerium, &c.--Co- 
lumbite :—the specimen from North America in 
which Mr. Hatchettdiscovered the metal (seePhil. 
Trans. 1802); yttriferous columbite or yttrotan- 
talite, from Bavaria, &c.—Silicate of yttrium: ga- 
dolinite , of which a unique crystal is here deposit¬ 
ed: 'pyrorlhite and orthite , two scarce Swedish mi¬ 
nerals, related to gadolinite.— Cerite or cerine (si¬ 
licate of cerium) from Bastnaes in Sweden.— 
Yttrocerite , a fluate of lime, yttria and cerium; 
and a related mineral composed of fluate of yttria 
and oxide of cerium, with only a small portion of 
lime, but in which is often found a fluate of the 
new earth to which Berzelius has given the name 
of thoria .—Specimens of the oxide of chromium, 
in quartz, discovered byM.Leschevin at Creuzot, 
in the department of the Saone and Loire. 
In the opposite compartment of this table-case 
are deposited (as appendix to the ores of iron) the 
substances called aerolithes, because they have 
fallen from the atmosphere, and meteoric stones , 
because they are by some supposed to be deposit¬ 
ed from meteors. The specimens of the former are 
—native iron from Gross-kamsdorf in Saxony;— 
two small polished pieces of the mass found in 
Southern Africa, which weighed about 250 
pounds, and is now in the cabinet of Haarlem;— 
fragment of the iron from Senegal;—specimens 
of 
