133 
bedded in gypsum;— datolite, being a borate with tri-sili¬ 
cate of lime, from Arendahl in Norway; the variety 
from Sonthofen (supposed to be a distinct species, 
called Jiumboldtite by Levy); and the globular-fibrous 
variety (which has received the name of hotryolite ) like¬ 
wise from Arendahl. 
In this Case begins the family of the Carbonates.— 
Carbonate of soda, from various localities, and among 
which is the African trona.— Carbonate of strontia, also 
called strontianite, in prismatic and acicular crystals, 
which latter have sometimes been mistaken for arra- 
gonite.— Carbonate of baryta or witlierite , among the 
specimens of which may be particularised the beautiful 
groups of double six-sided pyramids, and those of six- 
sided prismatic crystals.— Barytocalcite. 
Case 42. Carbonate of lime . The whole of this 
Glass Case is appropriated to the species called arrago- 
nite , among the principal specimens of which are the 
groups of prismatic crystals from Kosel, Bohemia, Ar- 
ragon, &c. ; those of the coralloid variety of this sub¬ 
stance from Eisenertz in Stiria, formerly called flos 
ferri, &c. To the massive varieties some of the calca¬ 
reous deposits of Carlsbad in Bohemia may be referred. 
Cases 43, 44, and 45 contain the crystallized varieties 
of carbonate of lime or calcareous spar. Among the 
specimens in Case 43 may be specified those illustra¬ 
tive of the double refraction, cleavage, supernumerary 
joints, colour, &c.; likewise the various secondary ob¬ 
tuse and acute rhombohedrons ; among the former of 
which the most common, but not the least striking, is 
the inverse variety of Haiiy, so called from its being as 
it were an inversion of the primitive rhombohedron of 
calcareous spar; and the same with a considerable ad¬ 
mixture of quartz, commonly called crystallized sand¬ 
stone of Fontainebleau, &c. In the next two cases are 
deposited many interesting and beautiful specimens, 
from the Hartz, Derbyshire, &c., of prismatic and py- 
ramidal modifications of the same substance. 
Case 46 contains various specimens of stalactic lime¬ 
stone , 
LONG 
GALLERY. 
Nat. Hist. 
