8 Mr. Phillips on a Group of Slate Rocks 



south, apparently without any argillaceous partings. Some red beds appear 

 toward the bottom. It is not here very productive of organic fossils, though 

 some beds are full of crinoidal remains; and one fossil, very unusual in this 

 rock, a large nautilus, allied to N. intermcdius, was discovered in a quarry 

 nearKirby Lonsdale with Bellerophon, Cirrus, Melania, Producta, Spirifer, 

 Terebratula, some heliciform shells, &c. 



In the river above the bridge, veins of calcareous spar divide the rock, and 

 yield a little fibrous green carbonate of copper. 



It is succeeded on the south by some argillaceous strata of considerable but 

 unascertained thickness, and these again are covered by beds of crinoidal 

 limestone and sandstone, of which, probably, a greater quantity would have 

 appeared further south, but for the immense deposit of alluvial and diluvial 

 matter which in that direction hides all the strntification. 



Westward, these thick limestone rocks rise by Biggins and Hutton Roof to 

 Farlton Knot, and are overlaid toward Sellet Hall and Whittington by lime- 

 stone, shale, coal, and sandstone of different kinds, which would occupy much 

 space in description ;— eastward, they are seen only in the river banks, being 

 immediately afterwards enveloped in the mass of gravel, which never once 

 allows their reappearance nearer than the neighbourhood of Ingleton. 



Lcck Beck. 

 The stream which flows by the village of Leek, and crosses the Ingleton 

 road at about three miles from Kirby Lonsdale, rises among the limestones 

 and shales of Gragreth and Green Crag. It speedily crosses the range of 

 lower limestones which appear in scars on its sides, as at Easgill Kirk, and 

 sinks into the slate series beneath, of which it denudes both the granular and 

 homogeneous varieties. The most interesting appearances of the latter kind 

 are where the stream approaches the inclosed lands. Here a course of fissile 

 rocks, which might perhaps be quarried for slate, crosses the stream in about 

 an E. and W. direction. Besides the numerous parallel edges of cleavage 

 planes on its surface, many other straight joints are made evident by the action 

 of the stream. Two sets of these, crossing one another at angles of 68° and 

 112', intersect the cleavage planes at 44° to 47°, and there is a set of distant 

 ])arallel lines which cross the cleavage at 90°. 



Bate Cleavage 



>■-■-'/ Planes. 



Bate 



