74 
natural history. (Minerals.) 
[north 
with particles of quartz and brown iron-stone, and from Brazil ;—cAro- 
mateoflead and copper, called vauqueamte ; a concomitant o^the Si- 
berian red lead ore chrome-iron, from tne department oi Var m 
France, and from Baltimore in Maryland, intermixed with talc stained 
^BoracicaSd'csassoZine) and borates --borate of soda, the salt known 
by the names of borax and tincal, from Tibet, Monte-rotondo, Tuscany, 
fee —borate of magnesia or boracite m separate crystals, and the same 
embedded in gypsum ; — datolile, being a borate with a tn-sdicate of 
lime? from Arlndal in Norway ; the variety from Sontiiofen (supposed 
to be a distinct species, called humboldhte dv Levy ) ; ana the globulai- 
fibrous variety (which has received the name of betryohte), nowise from 
^CasfdO is set apart for such silicates as contain one or more borates, 
of which, however, in some cases, it is uncertain how far these may be 
considered as essential component parts.— To this oroer belong the 
species tourmaline and axinite. Among the red-coloured varieties 
0 f the former, some of which are called rubelhte, the most remark- 
able deposited here is a specimen of uncommon form and dimensions, 
which was presented by the king of Ava to the late Colonel Symes, 
when on an embassy to that country ; blue varieties of the sarne, some 
of them known by the name of mdicolite ; a suite of modifications of 
tourmaline crystals of those colours, as well as of others, such as green 
of various shades, among which those from Brazil, Elba, and from 
Campolongo deserve more particular notice. Of the axinite, V ei- 
ner’s Thumerstein, very characteristic specimens from Bourg d Osians, 
Norway, &c., will be found in this Table Case. 
Case 41 In this Case begins the order of the Carbonates— Carbonate 
of soda from various localities — Carbonate of baryta or withente, among 
the specimens of which may be particularized the beautiful, groups oi 
double six-sided pyramids, and those, of six-sided prismatic crystals 
Barytocalcite, from Alston Moor in Cumberland— Carbonate of 
strontia, called strontianite, chiefly from Strontian in Argyllshire, ffi 
prismatic and acieular crystals, which latter have sometimes been mis- 
taken for arragonite. The remaining part of this Case is occupied by 
such specimens of the mineral species called arragonite as have partly 
been found to contain a few per cent, of carbonate of strontia : they 
are however, essentially carbonates of lime, though of a different crystal 
system. Among the more interesting of the regu ar forms here deposited 
„e the loose and variously grouped simple and hemitrope crystals from 
M-rao-on, and from Herrengrund, in Hungary, Kosel, Bohemia, &c., 
and the fine acicularly crystallized varieties, in brown iron-stone, 
from Ilefeld, in volcanic ejections of Vesuvius, &e. : they are con- 
tm <S!eT2, in which are also placed several very perfect specimens of 
th° coralloidal variety of arragonite from Eisenertz m Stina, and 
HUttenberg in Carinthia, formerly called Jlos fern, &c. : to the inassive 
varieties of this species some of the calcareous deposits of Carlsbad . in 
Bohemia may be referred. The remainder of the Case contains 
several striking varieties of common carbonate of lime or calcite, 
some of which have been mistaken for arragonite. 
Cases 43 ta 45 contain crystallized varieties of calcite. Among 
