GEOLOGICAL SOCIETY OF LONDON. 
157 
The ore occurs in veins usually perpendicular, and bearing 
W.N.W., which cut through the limestone, but are not con- 
tinued into the Siluarian rocks. The following veins are men- 
tioned : — 
Plumpton Hall ; now abandoned. 
Lindal More vein ; an exception to the usual condition, as it 
runs between the mountain limestone and the Windermere grits, 
striking north-west and dipping south-west 45" ; it is the princi- 
pal and most profitable vein of the district. 
Stainton ; three veins separated by a few yards of clay, spar, 
and limestone, perpendicular, and bearing W.N.W. 
Lindal Court ; several perpendicular veins near together, bear- 
ing W.N.W. 
Crosthwaite ; a poor vein bearing W.N.W., thought to be the 
continuation of that at Stainton. 
W et Plat j the rocks near are much disturbed, and the vein, 
after running W.N.W., turns down a fault in the limestone to 
N.N.W., but soon this thins out. 
Trap Rocks. — These are rare in the district ; Professor Sedg- 
wick has laid down some masses of igneous rocks at Shap Pells, 
on the south side of the high road ; one of them consists of red 
felspar with some mica, quartz, and hornblende. The slate rocks 
are much disturbed in the neighbourhood, and the faults have 
broken up the cleavage planes as well as the bedding of the 
rocks, from which Mr. Sharpe infers that the trap is more mo- 
dern than the eruption of the Shap granite, which took place 
before the cleaving of the slates, as the cleavage planes run 
through all the faults connected with that eruption. 
• At Biglands, south of Newby Bridge, there is a trap dyke 
running north-east, which has also disturbed the parallelism of 
the cleavage, and must be considered as of a modern date : it is 
not well exposed on the surface. 
The author concludes by a comparison of all the beds with 
those described by Mr. Murchison in the border counties of 
