PROCEEDINGS 
OF THE 
GEOLOGICAL SOCIETY OF LONDON. 
SESSION 1901-1902. 
November 6th, 1901. 
J. J. H. Testi, Esq., M.A., V.P.R.S., President, in the Chair. 
The List of Donations to the Library was read. 
The following communications were read :— 
1. ‘Note on a Submerged aud Glaciated Rock-Valley recently 
exposed to view in Carmarthenshire.’ By Thomas Codrington, Esq., 
M.Inst.C.E., F.G.8. 
2. ‘On the Clarke Collection of Fossil Plants from New South 
Wales.’ By E. A. Newell Arber, Esq., B.A. (Communicated by 
Prof. T. McKenny Hughes, M.A., F.R.S., F.G.8.) 
3. ‘On an Altered Silicecus Sinter from Builth (Brecknockshire).’ 
By Frank Rutley, Esq., F.G.S. 
The following specimens, photographs, and maps were exhibited :— 
Rock-Specimens and Microscope-Sections, exhibited by Frank 
Rutley, Esq., F.G.S., in illustration of his paper; also Lantern- 
Slides and Photographs by Frederick Chapman, Esq., A.LS., 
F.R.M.S. 
Specimens of Permo-Carboniferous and Triassic Plants from New 
South Wales, exhibited in illustration of the paper by E. A. Newell 
Arber, Esq., BA. 
Photographs of the Towy Valley at Drysllwyn (Carmarthen- 
shire), exhibited by Thomas Codrington, Esq., M.Inst.C.E., F.G.S., 
in illustration of his paper. 
VoL, LYIIL. a 
