-^ 



Vol. I.XXVIII. No. 310. 



Paet 2. 



THE 



QUARTERLY JOURNAL 



< OF THE 



GEOLOGICAL SOCIETY. 



EDITED BY 



THE PERMANENT SECRETAR 



July 4fch, 1922. 



[With Five Plates, illustrating Papers by Mr. 



Miss G. L. Elles, and Dr. L. J. Wills & Mr. B. Smith.] 



LONDON : 

 LONGMANS, GREEN, AND CO. 



PARIS:— CHARLES KLINCK8IECK, 11 RUB DE LILLE. 

 SOLD ALSO AT THE APARTMENTS OF THE SOCIETY. 



Price Seven Shillings and Sixpence, 



