Vol. LV. AUGUST 12tli, 1899. Wo. 219. 



Paet 3. 



THE 



QUARTERLY JOURNAL 



GEOLOGICAL SOCIETY. 



EDITED BY 



THE ASSISTANT-SECEETAEY. 



[With Seventeen Plates, illustrating Papers by Mr. J, E. \ 



\ Marr, Dr. Wheelton Hind, Mr. A. Vaughan Jennings, \ 



Mr. E. T. Newton, Mr. John Parkinson, Messrs. J. Park ; 



& F. Rutley, Dr. A. W. Rowe, and Mrs. Gordon.] \ 



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