C-. 



0' 



^oLL the PELECYPODA 1»«^*«/Sary 



OF 



THE MIOCENE OF MARYLAND 



A DISSERTATION 



PRESENTED TO THE BOARD OF UNIVERSITY STUDIES 



OF THE JOHNS HOPKINS UNIVERSITY FOR THE 



DEGREE OF DOCTOR OF PHILOSOPHY 



BY 



LEONIDAS CHALMERS GLENN 



1899 



BALTIMORE, MD. 



DECEMBER, 1904 



