BRECCIA LODES. 
113 
black Killas cemented by Copper 
Pyrites. 
Huel Friendship, Tavistock, 
Devonshire. 
Presented by Sir II. T. De la Beclie. 
367. Brecciated Lode of Cop¬ 
per Pyrites. 
CarmeVs Point, Anglesey. 
Shelf Y. 
368. Brecciated Lode of Bed 
HiE3iATiTE, cemented by Calc 
Siiar. 
Ulverstone, Lancashire? 
369. Conglomerated Lode. 
Pebbles cemented by Copper and 
Iron Pyrites. 
helistian Mine, Cornwall. 
Presented by G. C. Pox. 
370. Brecciated Copper Lode. 
Fragments of Slate andZinc Blende 
cemented by Carbonate of Iron. 
Dyffryn Castell, Cardiganshire. 
371. Brecciated Lead Lode, 
the cementing material being Zinc 
Blende and Carbonate of Lime and 
Iron. 
Llyn-y-parch, Bettws-y-coed, Caer~ 
narvonshire. 
372. Argentiferous Galena, 
producing 36 oz. Silver per ton of 
Lead. 
Cwm Symlog Lead Mine Qhat 
chiefly worked hy Sir Hugh Mid¬ 
dleton'), near Aberystivith, Car¬ 
diganshire. 
Presented by Captain Eeed. 
373. Brecciated Tin Lode, in 
which pebbles of slate are cemen¬ 
ted by crystallized Peroxide of 
Tin. 
Helistian Mine, Cornwall. 
Presented by the late Joseph Came, 
P.Pv.S. 
374. Brecciated Copper Lode, 
in which fragments of Ore or Slate 
are nuclei for the crystallization of 
-Quartz from a mass, chiefly of Car¬ 
bonate of Iron. 
Esgair Hir Mine, Cardiganshire. 
375. Brecciated Lode. Frag¬ 
ments of Quartz Bock cemented 
Iby Carbonate of Iron. 
Ogo Gyfwr, near Cernmaes, Angle¬ 
sey. 
376. Fragment of a Brecciated 
Lode, containing Coal, Sulphide 
of Lead and Sulphide of Zinc. 
Holywell Level Mine, near Holy- 
well, Flintshire. 
Presented by Mr. AYilliamson, Pendre, 
Holywell. 
377. Veinstone, showing pieces 
of Slate broken after their first 
deposition in the Blende. 
Esgair Hir Mine, Cardiganshire 
Presented by W. W. Smyth, F.R.S. 
378. Veinstone, showing por¬ 
tions of the Vein broken into 
angular fragments, and cemented 
together by the Sparry Iron Ore 
which encrusts them. 
Lead Mines of Allenheads, North 
umherland. 
Shelf VI. 
379. Part of a Lode in which 
pebbles are cemented by Peroxide 
of Tin, Chlorite, &c. 
Helistian Mine, Cornivall. 
Presented by the late Joseph Came, 
F.B.S. 
380. Veins of Galena, and a 
vein of Quartz in Slate, vvdth frag¬ 
ments of slate included. 
Silver Lead Lode, Daren Lead 
Mine, near Aherystwith, Cardi¬ 
ganshire. 
Presented by Captain John Pauli. 
381. Galena with Blende. 
Caegwe.rnog and Berthllwyd Silver 
Lead Lodes, near Dolgelly, 
Merionethshire, N. Wales. 
Presented by James Harvey. 
382. Galena cementing frag¬ 
ments of adjoining Bock. 
Lisburne Mines Aberystwith, Car¬ 
diganshire. 
Presented by the late Captain Eddy. 
Shelf VII. 
383. Part of a Copper Lode. 
Mammillated Copper Pyrites of 
part of the lode has been broken 
H 
