LIST OF OFFICERS FOR 188T. 



President, Harrison Allen. 



r E. D. Cope, 

 Vice-Presidents, < George L. Goodale, 



C Henry S. Williams. 

 Secretary, Samuel F. Clarke. 

 Treasurer, William T. Sedgwick. 



Members of the Executive ComtJiittee Elected froyn the 

 Society at Large. 



Henry F. Osborn, Charles V. Riley. 



LIST OF HONORARY MEMBERS. 



*Dana, James D., Ph.D., LL.D., Mineralogy, Zoology, Geology. 

 Professor of Geology, Yale College. 

 Tale College^ New Haven, Conn. 

 Gray, Asa, A.M., M.D., LL.D. Botany. 



Fisher Professor of Natural History and Director of the 



Herbarium, Harvard College. 

 Cambridge, Mass. 

 Leidy, Joseph, M.D., LL.D. Zoology. 



Professor of Anatomy, University of Pennsylvania ; Director 

 Biological Department, University of Pennsylvania ; Di- 

 rector Wagner Institute of Science, Phila. ; President 

 Academy of Natural Sciences, Phila. 

 Lesley, Joseph P., A.M., LL.D. Geology. 



State Geologist of Pennsylvania. 

 907 Walnut street, Philadelphia, Penn. 



