SUCCESSION OF MINERALS. 
105 
214. Part of a Lode, showing 
the fissure to have been partly 
filled with Blende, then with Ga¬ 
lena, and finally with a String of 
Quartz. 
Nant-y~Creiau Lead Mine, Ahev' 
ystwitli, Cardiganshire. 
Presented by R. Bincks. 
215. Part of a Lead Lode. 
Fox Rock Mine, Glendasane, Co. 
Wicklow, Ireland. 
Contributed by the Irish Geological 
Survey. 
Shelf III. 
216 and 217. Galena, Fluor 
Spar; and Sulphate of Baryta : 
(polished specimens). 
Crick, Derbyshire. 
Presented by Sir H. T. De la Beche. 
218. Successive depositions of 
Fluor, Barytes, and Iron Pyrites, 
in a Lode. 
Cidch, Derbyshire. 
219. Galena, Brown Iron Ore, 
and Quartz. 
Wheal Rose, Helston, Cornwall. 
220. Vein of Calc Spar, show¬ 
ing many successive additions in 
parallel planes. 
From the Carboniferous Limestone 
at Sally Moor, Weaver Hills, 
Staffordshire. 
221. Quartz, invested with a 
crust of crystallized Iron Pyrites. 
Herodsfoot Mine, E. Cornwall. 
222. Vein formation, showing 
succession of Fluor Spar with 
Galena, Carbonate of Iron, Green 
Fluor, and Quartz. 
Stanhope Burn, Weardale. 
Presented by W. W. Smyth, F.R.S. 
223. Successively deposited 
strings of Barytes and Galena. 
Brassington, Derbyshire. 
224. Veins of Iron Pyrites, Ga¬ 
lena, Blende, and Quartz. 
Cwm-y-swni Mines, near Dolgelly. 
Merionethshire. 
Shelf IV. 
225. Part of a Lode, showing 
plates or layers of Quartz and Iron 
Ore, with Copper Pyrites on one of 
the former. 
Wheal Cock, St. Just, Cornwall. 
Presented by Sir H. T. De la Beche. 
226. Matrix of Copper Lode, 
containing Quartz, Epidote, and 
Calcareous Spar, with fragments 
of the adjoining rock of serpen- 
tinous greenstone. 
Knockmahon Mines, Co. Water- 
ford. 
Contributed by the Irish Geological 
Survey. 
227. Bich Silver Lode, con¬ 
taining White Silver, Galena, Iron 
Pyrites, and Brown Spar. 
Nim dich in Acht, Freiberg, Saxony. 
228. Orthoclase Felspar, in¬ 
termingled with Quartz, 
In the Lode of Cowarch Lead 
Mine, Dinas Mowddwy, N. 
Wales. 
229. Successively crystallized 
ribs of Calc Spar. 
From a vein, Halkin Mountain, 
Flintshire. 
230. Part of a Copper Lode, 
poor for copper, but showing 
regular ribs of Zinc Blende and 
Quartz. 
Great ^Vork, Breague, Cornwall. 
Presented by John Sylvester. 
231. Veinstone, with Galena, 
Copper Pyrites, &c. 
From shallow workings on the main 
Fast and West Lode, Ecton, 
Staffordshire. 
Shelf V. 
232 and 233. Veinstone, show¬ 
ing riband structure, or numerous 
alternating deposits of Quartz, 
Galena, Heavy Spar, Iron Pyrites, 
and Blende. 
From the Mine Churprinz Fried¬ 
rich August, near Freiberg 
Saxony. 
Presented by Ernest Dolby. 
