PROCEEDINGS OF THE GEOLOGICAL SOCIETY. 5 



January 21, 1880. 



Henry Ciieton Soeby, Esq., LL.D., F.E.S., President, in the Chair. 



Kobert Bell, Esq., 20 Eurghley Eoad, Highgate Eoad, N"., was 

 elected a Fellow of the Society. 



The List of Donations to the Library was read. 



The President announced that an application had been made to 

 the Council by the President of the Philological Society for assistance 

 in perfecting an English Dictionary, in which it is proposed to 

 show the history of the various words. With regard to geological 

 and mineralogical terms he was especially anxious to obtain assist- 

 ance in ascertaining their earliest employment. Eellows of the 

 Society who were willing to cooperate in this work could commu- 

 nicate with the President of the Philological Society (Dr. Murray, 

 Mill Hill, Middlesex, N.W.). 



The following communications were read : — 



1. "On the Genus Pleur acanthus, Agass., including the Genera 

 Orthacanthus, Agass. & Goldf., Diplodus, Agass., and Xenacanthus, 

 Beyr." By J. W. Davis, Esq., E.G.S. 



2. "On the Schistose Yolcanic Eocks occurring on the west of 

 Dartmoor, with some Notes on the Structure of the Brent-Tor 

 Volcano." By Prank Eutley, Esq., F.G.S. 



3. "On Mammalian Eemains and Tree-trunks in Quaternary 

 Sands at Beading." By E. B. Poulton, Esq., F.G.S. 



The following specimens were exhibited : — 



Microscopic sections and a specimen of Schalstein from Nassau, 

 exhibited by John Arthur Phillips, Esq., F.G.S. 



Artificially formed Siliceous Stalactites and Concretions, exhibited 

 by E. A. Pankhurst, Esq. 



Cape Diamonds and specimens of Mr. Mactear's artificial crystals, 

 exhibited by Prof. Tennant, F.G.S. 



A specimen from Brent Hill, exhibited by W. G. Thorpe, Esq., 

 F.G.S. 



Specimens in illustration of their respective papers, exhibited by 

 Messrs. J. W. Davis, F. Eutley, and E. B. Poulton, 



February 4, 1880* 

 Heney Clifton Sorby, Esq., LL.D., F.E.S., President, in the Chair. 

 Francis Bond, Esq., M.A., Snowdon House, John Street, Hamp- 



VOL. XXXVI, b 



