Vol. LXXVI. 



Part 1. 



No. 301. 



THE 



QUARTERLY JOURNAL 



GEOLOGICAL SOCIETY. 





EDITED BY 



THE PERMANENT SECRETARY. 



JAN2Q192I: 



*•■»; 5 



[With Seven Plates, illustrating Mr. G. W. Lamplugh's 

 Presidential Address and Mr. J. A. Douglas's Paper.] 



October 30th, 1920. 



LONDON : 

 LONGMANS, GREEN, AND CO. 



PARIS:— CHARLES KLINCK8IECK, 11 RUE DE LILLE. 

 SOLD ALSO AT THE APARTMENTS OF THE SOCIETY. 



Price Seven Shillings and Sixpence. 



' 



( 



