129 
from Dauphine, and antimonial silver or stibiuret 
of silver. 
Case 3. Native arsenic (formerly called testa¬ 
ceous cobalt) in reniform and botryoidal shapes, 
from Andreasberg, &c., and its chemical com¬ 
binations, with nickel (commonly called copper- 
nickel ); with cohalt , comprising the grey and 
part of the white cobalt of some mineralogists ; 
with bismuth , in small hair-brown globules from 
Schneeberg in Saxony.—The remainder of this 
case contains the substances belonging to the 
confined orders of Carbon and of Selenium. 
To the former belong the diamond, anthracite, 
graphite; to the latter the selenium metals 
or seleniurets. Among the specimens se¬ 
lected to illustrate the crystalline forms of the 
diamond are, the primitive regular octahedron ; 
the same with solid angles truncated; with 
edges truncated, forming the passage into the 
rhombic dodecahedron ; varieties of the latter, 
giving rise to the six-sided prismatic and the 
tetrahedral forms; cubes with truncated and 
bevilled edges; various hemitropic crystals or 
macles of diamonds, &c. With these are placed 
specimens of the alluvial rocks in which this 
precious substance occurs in the East Indies 
and in Brazil;—among the specimens of an¬ 
thracite or kohlenblende (to which may be re¬ 
ferred the Kilkenny coal) is a specimen from 
Kongsberg, in Norway, with native silver;— 
k graphite , 
LONG 
GALLERY. 
