558 TRANSACTIONS OF SECTION C. 



years in the domain of British glacial geology. With these advances we have, 

 indeed, reason to be well satisfied. But the necessity for further knowledge is 

 insistent ; and it is useless to set about the solution of our intricate problem until 

 we have all the factors at command. Even then — ' Grant we have mastered 

 learning's crabbed text, Still there's the comment ' — and, as I have tried to show, 

 the comment may raise more difficulties than the text itself. 



The following Papers and Reports were then read : — 



1 . On the Geology of the Country round York. 

 By Professor P. F. Kendall, M.Sc. 



2. Report on the Fossiliferous Drift Deposits at Kir-mington, Lincoln- 

 shire, (&€. — See Reports, p. 313. 



3, The Lower Falceozoio Jiocks of Pomeroy. By William G. Fearnsides. 



The Pomeroy district was originally monograi)hed by Portlock between 1838 

 and 1845, and has since been neglected. Its Lower Palceozoic succession includes 

 both Ordovician and Silurian rocks, and rests uncomformably upon a much older 

 series of hornblendic and pyroxenic gneisses and schists, into which masses of 

 granite were intruded in pre-Silurian time. 



The succession may be tabulated thus : — 



C. CoRRTCEOAE Geoup. — Taraunon (Gala Facies). 



Variable green and grey flags and shales, with purple and green grits and 

 conglomerates. ( Undivided.) 



B. Little River GROur. — Llandovery (Birkhiil Fades). 



Li^ne Hill Beds, 



Black, blocky, micaceous mudstones, with light-coloured calcareous bands. 

 Zone of Monograptus Sedgtuickii, "with sub-zone of Petalograpti. 



Mullaghnabuoyah Beds, 



Variable grey shales and flaggy shales, with pyritous spots and a few dark 

 bands. Zone of Monograptus triangulaim, 



Edenvale Beds. 



Smooth, grey shales with black mudstoue bands. Zone of Monograptus 

 tenuis. 



Upper Slate Quarry Beds. 



Dark cuboidal mudstones, hard and calcareous. Zone of the Dimorphograpti. 

 Lower Slate Quarry Beds, 



Soft, blue-grey, papery, micaceous flags. Zone of Diplograptus modesties, 

 Crocknagargan Beds, 



Smooth, grey, pyritous shales. Zone of Cephalograptus acuminatus, 

 A. Desertcreate Group.— Ashgillian (Drummuck Facies). 

 Tirnaskea Beds. 



{Upper.) Smooth, banded, green and dark mudstones. Zone of Licello- 



graptus anceps. 

 {Loicer.) Tough, blocky, calcareous grits. Zone of Dicellograptus co7n- 



planatus and Phacops mucronatus. 



