WELSH LEAD ORES. 
•j I 
25 & 26. Argentiferous Ga¬ 
lena, massive, granular, and la¬ 
mellar. 
Tal-y-bont Mines, nearAberystwith. 
Presented by Captain Eddy. 
27. Galena, massive crystalline. 
BrynylasLead Mine, near Aberyst- 
with. 
Slielf V. 
28 & 29. Argentiferous Ga¬ 
lena, coarsely granular. 
Llanfair Clydogau Mine, Lampe¬ 
ter, Cardiganshire. 
Presented by Dr. Quin. 
30 and 31. Argentiferous 
Galena, massive, finely granular. 
Daren Lead. Mine, near Aberyst- 
with. 
Presented by Captain Paul. 
(Average produce 32 ounces of silver 
per ton of lead.) 
32. Argentiferous Galena. 
Cwm Symlog Lead Mine, near 
Aberystwith. 
Presented by Captain Reed. 
This mine is remarkable as having 
been one of the richest of those which 
were worked by Sir Hugh Myddleton, 
two centuries since, and by which he 
acquired the fortune afterwards liberally 
expended in supplying London with 
water by the “ New River.” 
33. Galena, massive, finely 
granular. 
Goginan Mine, near Aberystwith. 
Presented by G. Posset. 
34. Galena, with Copper Py¬ 
rites and Quartz. 
Cardiganshire. 
35. Galena, crystalline, inter¬ 
mingled with Clay Slate. 
From the brecciated portion of the 
lode, Henfwlch, Cardiganshire. 
Shelf VI. 
36. Galena, with “gossan.” 
Manod Mountain, Ffestiniog, 
, North Wales. 
Presented by W. W. Smyth, E.R.S. 
A lode coursing through porphyry on 
the Crownland, not worked for some 
years past. 
37. Galena, with Blende and 
Quartz. 
Caegwernog and Berthllwyd Silrer- 
lead Mines, near Dolgelly, Me¬ 
rionethshire, N. Wales. 
Presented by James Harvey. 
38 & 39. Steel-grained Galena. 
From Graigwen, Dinas Mowddinj 
Merionethshire. 
40. Specimen of “ country ” 
with strings of Galena, 
From the same locality. 
41. Galena, crystalline, with 
Blende, and occurring in alternat¬ 
ing layers with Calcite and Cop¬ 
per Pyrites. 
Cwm y Swm or Cwm-heisian, 3Ie~ 
rionethshire. 
42. Galena, crystallized in 
rhombic dodecahedrons. 
Byd Low Farm, Tyntwll, LJ.an- 
rwst, Denbighshire. 
Presented by Robert Owen. 
43. Galena, crystallized in 
cubes, and coated with Calcite. 
Cowarch Mines, near Dinas 
3Iowddwy, Merionethshire. 
44. Galena, auriferous, and 
argentiferous. 
Merionethshire. 
44a. Galena. 
Capel Bettws, Trelech ar Bettws, 
Caermarthen. 
Presented by the Caermarthen United 
Lead Mining Company (L.) 
45. Galena, imbedded in Calc- 
spar. 
Oernant,Penmachno, Yspytty Ecan, 
Caernarvonshire. 
Shelf VII. 
46 & 47. Galena. 
Part of the lode at Caegwernog 
and Berthllwyd, near Dolgelly, 
Merionethshire. 
Presented by J. Harvey, 
48. Galena, argentiferous, and 
auriferous. 
Cwm-y-Swm Mine, Merioneth¬ 
shire, North Wales. 
Presented by James Harvey. 
49. Large mass of Galena, 
crystalline. 
