﻿vi PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Feb. I908, 



2. ' On the Applicatiou of Quantitative Methods to the Study of 

 the Structure and History of Eocks.' By Henry Clifton Sorby, 

 LL.D., r.E.S., r.L.S., F.G.S. 



The following lantern-slides and maps were exhibited : — 



Lantern-slides, exhibited on behalf of Prof. G. F. Wright, 

 F.G.S.A., in illustration of his paper. 



Lantern-slides, exhibited by Dr. H. C. Sorby, F.R.S., F.L.S., 

 F.G.S., in illustration of his paper. 



Geologic Atlas of the United States : Folios 141 & 142, 1906 ; 

 143-150, 1907, presented by the Director of the United States 

 Geological Survey. 



January 22nd, 1908. 



Sir Archibald Geikie, K.C.B., D.C.L., Sc.D., Sec.R.S., President, 

 in the Chair. 



The List of Donations to the Library was read. 



The following communications were read : — 



1. ' The Origin of the Pillow-Lava near Port Isaac in Cornwall.' 

 By Clement Eeid, F.B.S., F.L.S., F.G.S., and Henry Dewey, 

 F.G.S. (Communicated by permission of the Director of H.M. 

 Geological Survey.) 



2. 'On the Subdivision of the Chalk at Trimmingham (Norfolk).' 

 By Reginald Marr Brydone, F.G.S. 



The following specimens, lantern-slides, and maps were 

 exhibited : — 



Specimens of pillow-lava from Port Isaac (Cornwall), and 

 lantern-slides, exhibited by C. Eeid, F.E.S., F.L.S., F.G.S., and 

 H. Dewey, F.G.S., in illustration of their paper. 



Specimens and lantern-slides exhibited by E. M. Brydone, F.G.S., 

 in illustration of his paper. 



Geological Survey of England and Wales : twelve sheets of the 

 6-inch maps of South Wales, presented by the Director of H.M. 

 Geological Survey. 



Geological Survey of the Transvaal : Sheet No. 1 — Pretoria, 

 1 inch = 2| miles, presented by the Director of that Survey. 



