3 



Vol. lxxiv. No. 294. 



Part 2. 



THE 



QUARTERLY JOURNAL 



OF THE 



GEOLOGICAL SOCIETY. 



EDITED BY 



THE PERMANENT SECRETARY. 



[With Five Plates, illustrating Papers by Mr. R. D. Oldham, | 

 Mr. J. Morrison, and Mr. L. Richardson.] 



July 9th, 1919. 



LONDON : 

 LONGMANS, GREEN, AND CO 



PARIS:— CHARLES KLINCK8IECK, 11 RUE DE LILLE. 

 BOLD ALSO AT THE APARTMENTS Olr THE SOCIETY. 



Price Seven Shillings and Sixpence. 



a 



