114 
BEECCIA LODES. 
by some dislocating force, and the 
fragments so formed have been 
subsequently cemented by Iron 
Pyrites. 
Virtuous Lady Mine, Tavistock, 
Devonshire. 
Presented by Captain John Williams. 
384. Hematite Iron Ore. 
From the Oreat Lode 40 feet wide 
in the Mountain Limestone, 
Ulverstone, Lancashire. 
The balls of Hematite are shattered 
and reunited on the north face of the 
lode to the distance of about 4 feet from 
the Limestone. 
Presented by the late Dr. Buckland. 
Wall-case 33. 
Shelf I. 
385. Part of a Lode, in which 
pebbles of Slate, and a few of 
Quartz, are cemented by Tin¬ 
stone, Chlorite, &c. 
JRelistian Mine, Cornwall, 
Presented by the late Joseph Came, 
F.R.S. 
(This large specimen is placed on the 
top shelf.) 
Examples of Breccias with Fi 
Shelf II. 
392. Part of a Copper Lode, 
exhibiting a cavernous or “ vuggy” 
portion. 
Great St. George Mine, Ferr an- 
zahuloe, Cornwall. 
Presented by Henry Humphries. 
393 to 395. “ Flucan” tilling a 
“ slide,” and including fragments, 
sometimes quartzose, sometimes 
orey, of the Copper Lode which it 
has heaved. 
30 fathoms level, Knockmahon 
Mines, Co. Waterford, Ireland. 
396. Blende and Quartz, in¬ 
tersecting Fluor Spar, and Quartz 
capped by Cacholong. 
Smittergill Head, Cumberland. 
Presented by W. W. Smyth, P.R.S. 
397. Cacholong, investing 
Quartz, on Fluor Spar, illustrating 
the sequence of different varieties 
of Silica. 
Smittergill Head, Cumberland. 
386 to 388. Conglomerate 
Lode. Pebbles cemented by Cop¬ 
per Pyrites and Peroxide of Tin. 
Relistian Mine, Cornwall. 
Presented by the late J. Came, F.R.S. 
389. Brecciated Copper 
Lode, the cavities between the 
fragments not entirely filled up. 
St. Austell, Cornwall. 
390. Brecciated portion of a 
Copper Lode, containing frag¬ 
ments of the slate, traversed by 
the lode. 
Wheal Providence, Gwinnear, 
Cornwall. 
391. Brecciated and Con¬ 
glomerated Lode. Fragments 
and pebbles of Slate, El van, and 
Quartz, cemented by the matter of 
the lode. 
Huel Badger, Gwinnear, Corn¬ 
wall. 
Presented by Sir H. T. De la Beche. 
4MENTS OF PRE-EXISTING LODES. 
398. GtAlena, enveloping frag¬ 
ments of rock. 
Cardiganshire. 
399. Fragments of “ Wood 
Iron,” (fibrous brown Peroxide 
of Iron) cemented by Oxide of 
Manganese. 
Bestormel Royal Iron Mine, near 
Lostwithiel, Cornwall. 
400. Argentiferous Galena, 
containing fragments of rock. 
Tamar Silver-lead Mines, Devon¬ 
shire. 
Presented by Messrs. Johnson and Cock. 
401. Quartz, occurring in iso¬ 
lated balls in the cross-courses. 
Knockmahon Mines, Co. Water¬ 
ford, Ireland. 
402. Wolfram, with transverse 
cracks filled with Copper Pyrites. 
Carn-brea Mines, near Redruth, 
Cornwall. 
