BORAX AND BORACIC ACID. 
147 
207. Hock Salt, red variety. 
Cheshire. 
208. Rock Salt. 
From a boring 1,300 feet deep. 
New Fed Marls, Middleshro'- 
on-Tees. 
The salt upwards of 100 feet thick, 
newly discovered, 1863. 
Presented hy H. Bauerman, P.G.S. 
209 and 210. Rock Salt, in 
marl. 
Poland. 
211. Rock Salt. 
From the Tertiary Marls of San 
Leopoldo, Vollerra, Tuscany. 
212. Rock Salt, purple. 
Volterra, Tuscany. 
213. Rock Salt, blue. 
Hallstadt, Austria. 
214. Rock Salt, in contorted 
fibres. 
Arabia Fetrcea. 
Presented by Major ^lacdonald, 
215. Rock Salt, in cubic crys¬ 
tals. 
216 and 217. Bat Salt, in hop¬ 
per-shaped crystals from the eva¬ 
porating pans. 
218. Cryolite, or Ice-stone 
(^Fluoride of Sodium and Alu¬ 
minium). 
Asksut-fiord, Greenland. 
Presented by Augustus Robinson. 
219. Cryolite, with Spathose 
Iron Ore, &c. 
Arksut-fiord, Greenland. 
220. Thenardite (^Anhydrous 
Sulphate of Soda). 
Old Castile, Spain. 
221. Glauberite (^Sulphate of 
Soda and Lime). 
Andossila, Navarre, Spain. 
222. Nitratine, or Cubic Nitre 
{Nitrate of Soda), a natural sta¬ 
lactite. 
Tarapaca, Peru. 
Presented by William Bollaert. 
223. Borax, or Tincal {Hydrous 
Bi-borate of Soda). 
Thibet. 
224. Two detached crystals of 
native Borax. 
Thibet. 
Collected and presented by Captain 
Strachey. 
225. Hayesine, or ‘‘Tiza” 
{Hydrous Borate of TJme and 
Soda), as imported into Liverpool. 
From Peru. 
Presented by T. C. Archer, 
Nos. 226 to 240. A series of 
specimens illustrating the produc¬ 
tion of Boracic Acid at the works 
of the late Count Larderel, in the 
I Maremme, Tuscany. 
I Presented by the late Count Larderel. 
226. Dolomitic Limestone, of 
j Monte Rotondo, near the Boracic 
Acid Lagoons. 
227. Gypsum. 
From the Boracic Acid Lagoons, 
Monte Cerboli. 
228. Various Crystallized 
Substances produced at the Bo¬ 
racic Acid Works. 
229. Calcareous Incrusta¬ 
tion, from the evaporating cal¬ 
drons . 
230. Impure Insoluble De¬ 
posit, from the concentrated 
waters of the Boracic Acid La¬ 
goons. 
231. Residuum of the Lagoons. 
232. Boracic Acid, or Sassolin. 
San Francisco. 
233. Boracic Acid, good 
quality. 
San Francisco. 
234. Boracic Acid, inferior 
quality. 
Sant Adriano. 
235. Boracic Acid. 
San Filiberto. 
236. Boracic Acid. 
Sant Angiolo. 
237. Boracic Acid. 
San Giacomo. 
238. Boracic Acid. 
Sant Enrico. 
239. Boracic Acid. 
Sant Edouard. 
K 2 
