LEAD ORES. 
83 
75 to 77. GrALENA, light colourod 
variety, fine grained. 
Crick, Derbyshire. 
No. 76 exhibits an appearance of 
corroded surface, with crystals of huor 
deposited in the eroded hollow. 
Shelf IV. 
78. Galena, large cubes partly 
iucrusted with Pearl-spar. 
Grassington Lead Mine, near 
Skipton, Yorkshire. 
Presented hy the late Captain S. 
Eddy. 
*1 
79. Galena, crystalline, enclos¬ 
ing angular fragments of Grit¬ 
stone. 
Grassington Mines, near Skipton. 
Presented hy Captain S. Eddy. 
80 to 83a. Galena, in strings, 
and imbedded in a matrix of fluor, 
cjuartz, and semi-opal. 
JRodderup Fell, Aldstone Moor, 
Cumberland. 
Shelf V. 
84 to 86. Galena, with Pearl- 
spar and Calcspar crystallized. 
From a vein in Mountain Lime¬ 
stone, JVent Head, Aldstone 
Moor. 
87. Galena, with Copper Py¬ 
rites and Mispickel. 
Nent Head, Aldstone. 
88. Galena, argentiferous, as¬ 
sociated with Quartz and Fluor 
(contains 14 ounces of silver per 
ton of lead). 
Smitiergill Head lode, Aldstone. 
Presented hy W. W. Smyth, E.E.S. 
1855. 
89 to 92. Galena, crystallized 
v/ith Calcspar, Blende, and Quartz. 
From the Nent Head veins, Ald¬ 
stone Moor. 
Shelf VI. 
93. Galena, with Blende and 
purple Fluor. 
From the firestone sill or stratum, 
Fampgill vein, Nent Head. Cum¬ 
berland. 
94 and 95. Galena, witli Fluor¬ 
spar, Quartz, and Semiopal matrix. 
Fodderup Fell vein, Aldstone 
Moor. 
96. Galena, with Aragonite. 
Nent Head, Aldstone. 
96a. Galena, crystallized, with 
Bitter or brown Spar. 
Aldstone Moor District, Cumber¬ 
land. 
Presented hy W. R. Eeynell. 
97. Galena, associated with 
Blende. 
Fampgill vein, Nent Head. 
98. Galena, with Copper Py¬ 
rites and Blende. 
Nent Head. 
99. Galena, vrith Black lime¬ 
stone. 
Long Cleugh vein, Nent Llead. 
100. Galena, crystallized, with 
Siderite (Spathose iron). 
Cumberland. 
101. Galena, associated with 
Magnetic Pyrites. 
Smittergill Head. 
Presented hy W. W. Smyth, E.R.S. 
102. Galena, argentiferous, 
exhibiting an appearance of cor¬ 
roded surfaces. 
Alle7iheads, Northumberland. 
Presented by W. W. Smyth, F.R.S. 
103. Galena, crystallized, with 
peculiarity of structure on the 
surfaces of the cubes, termed 
‘Cseals” (by the miners). 
Allenheads. 
Presented by W. W. Smyth, F.R.S. 
104. Galena, crystallized with 
Fluor and Pearl-spar. 
County of Durham. 
Shelf VII. 
105. Part of a vein of Galena. 
Colliery ..near North Su?iderland, 
Northumberland. 
Presented by Sir Walter C. Trevelyan, 
Bart. 
106. Ga.len-4, associated v/ith 
Witherite. 
From the same vein. 
C 
