32 
SALOON. 
Nat. Hist. 
{Case 20.) Prismatic and pyramidal modifica¬ 
tions of the same, among the former of which 
arelhe beautiful prismatic and dodecahedral va¬ 
rieties (Mod. 2, w'ith 3 and 4 of Bourn.) from 
the Hartz; among the latter, the voluminous crys¬ 
tals of the metastatic variety (Mod. 36.) &c. 
(Case 21.) The same continued : also hemitro- 
pic or macled crystals, among which is the beauti¬ 
ful heart shaped made of the variety called, by 
Haiiy, analogique distante. (Mod. 2, 4, and 36.) 
■—This case also contains granular and compact 
limestone (marbles); massive magnesian lime¬ 
stone, called dolomite, and (contiguous to it, in 
the opposite case) the crystallized magnesian lime¬ 
stone, called bitterspar, in chlorite slate, &c.— 
Fibrous limestone, the finest variety of which is 
that from Cumberland, and Andrarum in Sweden, 
with pearly lustre, which has obtained the name 
of satin spar. 
(Case 22.) Various specimens of stalactical 
limestone, some varieties of which bear the 
name of alabaster in common with compact 
gypsum; the peculiar variety called pea stone, 
from the hot springs of Carlsbad in Bohemia, 
and the white variety found in the bed of a small 
river near Tivoli, and known by the name of 
confetti di Tivoli. —Calcareous tufo; to which are 
added some casts of medals, made at the baths of 
San- 
