Vol. LXXIV. 



Part L 



No. 296. 



THE 



QUARTERLY JOURNAL 



OF THE 



GEOLOGICAL SOCIETY. 



EDITED BY 



THE PERMANENT SECRETARY. 



[With Five Plates, illustrating Dr. A. E. Truemaivs 



Paper.] 



Novembeb 25th, 1919. 



LONDON : 

 LONGMANS, GREEN. AND CO. 



PARIS:— CHARLES KLINCKBIECK, 11 RUE DE LILLE. 

 80LD AL60 AT THE APARTMENTS OF THE SOCIETY. 



Price Seven Shillings and Sixpence, 



