17 
in cfendritical 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 ; glossopetrae, bufonites ; insects : fossil 
crab ; various echinites ; shells : several petrified 
species of pecten, chama, anomia, nautilus 
belemnitas, 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 > 
&c. in limestone. 
A collection of specimens of Rocks , 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 con- 
h 2 veyed. 
ROOM VIII. 
Nat. I-Iist. 
