Vol. LXVIII. SEPTEMBER 12th, 1912. No. 271. 

 Paet 3. 



THE 



QUARTERLY JOURNAL 



OP THE 



GEOLOGICAL SOCIETY. 



OCT 3 



BDITBD BY 



THE ASSISTANT-SECRETARY. 



[With Seventeen Plates, illustrating Papers by Mrs. Long- 

 staff, Mr. H. Bolton, Prof. 0. T. Jones, Mr. P. Lake & 

 Prof. S. H. Reynolds, Mr. H. H. Thomas & Prof. 0. T. Jones, 

 and Mr. B. Smith.] 



LONDON : 

 LONGMANS, GREEN, AND CO. 



PARIS:— CHARLES KLINCK8IECK, 11 RUB DE LILLE. 

 SOLD ALSO AT THE APARTMENTS OP THE SOCIETIT 



Price Five Shillings. 



