212 PROCEEDIN^GS OF THE GEOLOGICAL SOCIETY. [Mar. 19, 



Eden, the inferior sandstones. They occur at Porge Mill, immedi- 

 ately opposite to Lacy Caves, where they are intersected by a fel- 

 stone dyke ; at Scatterbeck, and in the brook near Lazonby village, 

 they are also seen ; they form Blaze Pell, and Great Barrock ; and 

 east from these we have them well exhibited in the Eden, immedi- 

 ately above Armathwaite Mill, where they are intersected by the 

 trap-dyke which runs from the Carboniferous rocks at Benwick, in 

 a N.W. direction to Petterill Crooks, near the Wreay Station on the 

 Lancaster and Carlisle Bailway. East from Armathwaite, the in- 

 ferior sandstones are found at Napestone, and amongst these are 

 hard coarse flags like those of Templand quarry near Corncockle. 



Below Armathwaite Bridge the inferior sandstones are confined 

 to the west side of the Eden. They are worked at Little Barrock 

 quarry, near the Wreay Station ; but here they have a yellow colour, 

 and no flaggy beds. 



Their most N.E. exposure is in the course of a small stream flowing 

 into the Petterill, known as Howgill Beck, on the west side of the 

 Carlisle road, near Carleton Hill. Only a small portion of the higher 

 beds appear here, consisting of red sandstones dipping "W., succeeded 

 by nearly horizontal layers passing conformably under the marls 

 and gypsums of the argillaceous series, which here dip N. at a low 

 angle. 



The western margin of the inferior sandstones also affords some 

 sections. As occurring in Ive-gill, they have been described by 

 Prof. Sedgwick*. Here the upper part of the stream is through 

 these rocks, which dip N. at 20°. 



Below these, purple Carboniferous grits are seen ; and closely con- 

 tiguous to these grits the red sandstones exhibit reversed dips, and 

 also a thin bed of breccia composed of fragments of the Carboniferous 

 grits. The Carboniferous rocks extend down the stream to near 

 High-head Castle, where the inferior red sandstones are again seen, 

 and where their occurrence is mentioned by Prof. Sedgwick. WeU- 

 marked northern inclinations obtain here, and continue to near the 

 junction of Raw Beck, below which the sandstones again appear, 

 and continue with the same inclination to Stockdalewath, where, for 

 a short distance, Carboniferous rocks again occur. 



The inferior sandstone, however, soon again makes its appearance, 

 forming the brook- course to below the bridge at Througholme, where 

 it passes conformably under the argillaceous series, which occurs 

 about 200 yards below Througholme Bridge, dipping N. at 10°, and 

 is about 100 feet in thickness. 



Below the argillaceous series, on the east side of the stream, 

 Carboniferous rocks again appear, and extend south-eastward to 

 Broadfield, where they were formerly worked for lime, as referred to 

 by Prof. Sedgwick t. Erom Broadfield they extend stiU further in 

 the same direction to Roughten GiU, a mile north of Southwaith 

 Station, where they are wrought for the ironstone -nodules which 

 they contain. 



* Geol. Trans. 2nd Series, vol. iV. p. 406. t Op. cit. p. 391. 



