15Q 
THE GEOLOGIST. 
by Mr. Murcliison in the Lower Silurian deposits^ and several 
undescribed species. 
2nd. SlateSj Shales, and Flagstones. — These are well exposed 
on Torver Fell^ where the following series may be seen : — 
a. Brown shale. 
h. Dark blue slate of good quality; the beds dip E.S.E. 40°^ 
and the cleavage dips S.S.E. 80°; it contains many fossils, much 
compressed and distorted, nevertheless a few Lower Silurian 
shells are made out. 
c. Indurated brown shale. 
d. Blue flagstone rock, a bed well known in the district, and 
mentioned by Professor Sedgwick and Mr. Marshall ; at Torver, 
where it gives good roofing-slate as well as flags, the beds dip 
south-east 45°, and the cleavage south-east 80°. To the east- 
ward of Windermere this bed and the lower bed of slate h run 
together, and the whole of the Lower Silui'ian formation dimin- 
ishes in thickness. 
e. Indurated shale. 
/. Shear Bed, which supplies brownish-blue flags, taken 
along the bedding of the rocks, which is free from slaty clea- 
vage. 
This series of slates, flagstones, and shales, may be traced 
above the Coniston limestone from the Dudden to Shap Fells, 
although the separate beds cannot always be distinguished. 
3rd. Grey Slaty GrzY^, described in Mr. Sharpens former paper 
as the " Lower division of the Windermere rocks," but now classed 
as part of the Lower Silurian formation ; they consist of a great 
thickness of hard gritty grauwacke, variously efi'ected by cleavage, 
and may be traced from the Dudden, below Broughton, to Shap 
Fell. 
4th. Blawith Limestone, the second band of calcareous slate" 
of Professor Sedgwick ; a bed only found in two localities, at 
Meer Beck and a wood behind Low Hall, on the east of the road 
from Ircleth to Kirkby Irelcth, where it is a dark-blue limestone 
