I Vol. Lxxvir. 



! Paet 3. 



Wo. 307. 



THE 



QUARTERLY JOURNAL 



OF THE 



GEOLOGICAL SOCIETY. 



EDITED BY 



THE PERMANENT SECRETARY. 



[With Seventeen Plates, illustrating Papers by the late 

 C. Reid & Mr. J. Groves, Prof. W. J. 

 Reynolds, and Mr. J. A. Douglas.] 



NOYEMBER 11th, 1 



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