146 
NON-METALLIC MINERALS. 
185. Sulphur, in acicular 
crystals. 
186 to 188. Sulphur, in rhom¬ 
bic forms, crystallized from Cam- 
phine at temperatures from 170-6° 
to 280-4° Fah. 
189. Sulphur, in rhombic 
forms, crystallized from solution 
in Bisulphide of Carbon. | 
190. Tablet supporting speci¬ 
mens of Rhombic Sulphur arti- 
hcially crystallized. 
1. From Sulpho-pentachioride 
of Phosphorus at 244-4° Fah. 
2. From Camphine at 224° Fah. 
3. From Bisulphide of Carbon 
at 62° Fah. 
191. Model showing the crys¬ 
tallographic axes of the rhombic 
forms assumed by Native Sulphur, | 
and Sulphur which has been arti- i 
ficially crystallized by evaporation, j 
192. Model showing the crys¬ 
tallographic axes of the oblique 
or monoclinic forms assumed by 
Sulphur which has been crystal¬ 
lized from fusion. 
Nos. 162 to 192 presented, from the 
Great Exhibition, 1851, by Samuel High- 
ley, jun. 
193. Crude or Unrefined 
Sulphur. 
Ireland. 
Presented by M. E. Enclose de Bous - 
sirs. 
194. Cake Sulphur, prepared 
from the impure stone, or ore 
(No. 145), of Radoboj^ Croatia. 
195. Crude Sulphur, prepared 
from the stone of Szivoszowicze, 
Gallicia. 
196. Cake Sulphur, prepared 
from the ore of Szwoszowicze. 
Gallicia. 
Nos. 195 and 196 presented by the 
Austrian Government. 
197. Tablet supporting five 
Sulphur Casts of Gems. The 
vermilion exterior is obtained by 
pouring the fused sulphur into 
moulds coated with vermilion. 
198. Tablet with two Sulphur 
Casts of a Greek Coin, with in¬ 
scription, 
BASIAEGSANTIOXOT ETEPFETOT. 
Selenium. 
199. Seleniferous Deposit. 
From the roasting furnaces of the 
Mansfeld Copper-Slate Mining 
Company, at Eisleben, Prussian 
Saxony. 
200. Selenium, prepared from 
the Seleniferous Deposit (No. 199) 
by the Mansfeld Copper-Slate 
Mining Company, Eisleben. 
From the International Exhibition, 
1862. 
Case D. 
Salts of Soda, Potash, &c. 
Along with the more notable natural salts which possess a metallic 
base of sodium, potassium, aluminium, or magnesium, there is ranged a 
small series of boracic acid and its salts, although the base of these, 
boron, is commonly classed as a parallel to carbon, from certain resem¬ 
blances observable in the pure element when artificially obtained. 
201. Crystallized Sodium, 
prepared at the Washington Alu¬ 
minium Works, Newcastle-on- 
Tyne. 
Presented by J. Lowthian Bell. 
Marls, JVbrthwich, Valley of the 
Weaver, Cheshire. 
Presented by Sir Philip Egerton, Bart. 
(Nos. 204 and 205 are placed in the 
case beneath.) 
202 to 205. Rock Salt {Chlo¬ 
ride of Sodium). 
From the New Fed or Keuper 
206. Rock Salt, crystalline and 
colourless, 
Cheshire. 
