LIST OF OFFICERS FOR 1890. 



PrcsidcMit, 11. Newell Martin. 



r Samuel F. Clark k, 

 Vice-Presidents, } VVm. North Rice, 



( R. Ramsay Wright. 

 Secretary, IIenrv II. Donaldson. 

 Treasurer, William T. Sedgwick. 



Mcjnbers of the Executive Committee elected from the 



Society at Large. 



Wm. Lip.bev, Jr., Wm. M. Davis. 



LIST OF HONORARY MEMBERS. 



*Dana, James D., Pli.D., LLD., Mineralogy, Zoology, Geology. 

 Professor of Geology, Yale University. 

 Tale University., New Haven., Conn. 

 Leidv, Joseph, M.D., LL.D. 



Professor of Anatomy in the University of Pennsylvania, and 

 Director of the Biological Department, President of the 

 Faculty of the Wagner Free Institute, and President of the 

 Academy of Natural Sciences, Philadelphia. 

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



State Geologist of Pennsylvania. 

 907 Walnut street, Philadelphia, Pe?in. 

 Marsh, O. C, Ph.D., LL.D. Pahcontology. 



Professor of PaUeontology, Yale University. 

 8 Peabody Museum, New Haven, Conn. 



