326 Reports and Proceedings — Geological Society of London. 



Journal of the Geological Society, the Geological Magazine, the 

 Reliquice Aquitanicce, Dixon's Geology of Sussex, the Arctic Manual, and 

 other works, he showed a high-class capacity in literature. 



"Never in receipt of more than a very moderate income, derived from 

 a small pension upon his retirement from the post of Professor of Geology in 

 the Koyal Military College, Sandhurst, he was unable to make any suitable 

 provision for his death (when his pension ceased), and has left a widow with 

 two daughters and an invalid son, almost wholly unprovided for. 



"It is proposed to form a Committee of Geologists to consider the means 

 of providing some memorial in aid of the widow and daughters of the late 

 Professor. Any Fellows present willing to assist in this object are requested 

 to communicate with the Assistant Secretary. ' ' 



The following communications were read : — 



] . " The Llandovery and Associated Rocks of jSTorth-Eastern Mont- 

 gomeryshire." By Arthur Wade, B.Sc, E.GKS. 



The area dealt with in this paper is in the neighbourhood of 

 "Welshpool. It comprises part of the Severn Yalley and the whole of 

 the Yale of Guilsfield. A summary of the work done is first given, 

 and the deficiencies of the present geological map are pointed out. 

 The detailed sequence is as follows : — 



(3. Sandy flags and shales, some- 

 times calcareous. 

 Ludlow Yr Allt Group -, 2. Hard thick flags, with thin 



shale-bands and septaria. 

 ll. Thin muddy shales. 

 Salopian J . [Blue flags, gritty, with cal- 



(1,000 feet) | B. Western facies n careous concretions or 



' boulders. 



fBlue flags, as a rule minutely 

 false-bedded, with earthy 

 "I mudstones, and a thin 



^ limestone bed. 



/ m en i \ t Green and purple barren shales. 



( = Tarannon Shales)) L l 



r (2. Thick calcareous flags and 



B . Western facies I ■, , & 



Upper J (Cloddiau Group) \ ± B1 ™ U s ^ ales / 

 < Llandovery j A . Eastern facies / Thick calcareous flags, with 

 V (Cefn Group) L Pentamerus Limestone. 



T , c fBed sandstone and conglomerate, 



Tl °i Wei . \ PowisCastle Group -] with occasional limestone 



I developments. 



(Black shivery shales, phosphatic with a band 



Wenlock 



A. Eastern facies 



Valentian 

 (700 feet) 



ASHGIELIAN 



(50 feet) 



Caradocian 

 (1,300 feet) 



Gwern-y-Brain Beds ■ 



Glenkilx- 

 Hartfell J 

 ( = Dicrano-) 

 graptus j 



Gaer-fawr Group 



Pwll-y-Glo Group 



Trilobite 

 Dingle Group 



Shales) 



k 



SI 



f 2 ' 

 I 1 - 



of black crystalline limestone near the 

 base ( = Statirocephalus Limestone?) 



Calcareous mudstones and limestones 

 ( = Bala Limestone); coarse, ashy, fel- 

 spathic bands. Thin, phosphatic, pale- 

 grey shales at the base. 



Massive grits, with bastard limestones. 



Flags and grits, with some shale-bands. 

 Shales and flags, with some grit-bands. 



Nodular mudstones and grey shales, 



with Trimicleus. 

 Splintery grey shales, with Diplogrdptus 



{Mesograptus) foliaceus, etc. 



