17 
in dendritical figures on a slab of black clay slate 
(probably a production of art) ; vitreous and red 
silver ores. Lead ores : common galena, vari¬ 
ously crystallized; compact galena : slickenside; 
brown, white, green, red, and yellow lead ores ; 
vitriol of lead. Quicksilver ores : dark and light 
red cinnabar, &c. 
(Div. 4 .) Gold ores: native gold, massive, 
laminar, and filiform, in quartz, &c. Sylvan ore 
or Tellurium. Platina in grains (in a phial) : a 
spoon of the same metal for experiments with 
the blow-pipe. 
Petrifactions, &c.; a turquois, set with dia¬ 
monds in a ring; impressions of fishes in lime¬ 
stone ; glossopetrse, bufonites; insects : fossil 
crab ; various echinites; shells : several petrified 
species of pecten, chama, anomia, nautilus: 
belemnitae, commonly called thunderbolts; cor¬ 
nua Ammonis; fragments of encrinitse, and 
pentacrinitae, generally called star stones, &c. ; 
petrified fruit of a palm, leaves of tropical ferns. 
See. in limestone. 
A collection of specimens of Rod's, arranged 
partly according to their natural affinities. 
(Div. 5 .) Granitic and other rocks belonging 
to the slate-formation of Mr. Werner. Gra¬ 
nites of the three usual constituent parts, (a 
fragment of the immense mass of granite eon- 
h 2 veyed 
ROOM VIII. 
Nat. H3*t, 
