Vol. lxxvi. No . 304. 



Part 4. 



THE 



QUARTERLY JOURNAL 



GEOLOGICAL SOCIETY. 



EDITED BT 



THE PERMANENT SECRETARY. 



[With Four Plates, illustrating Mr. E. S. Cobbol&'s Paper.] 



March 9th, 1 



LONDON 

 LONGMANS, GREEN, AND CO 



PARIB:— CHARLES KLINCK8IECK, 11 HUE DE LILLE. 

 BOLD ALSO AT THE APARTMENTS OF THE SOCIETY. 



Price Seven Shillings and Sixpence. 



