

The Academy of Natural Sciences of Philadelphia, 



January 28, 1910. 



I hereby certify that printed copies of the Proceedings for 1909 were 

 mailed as follows : — 



Pages 1-48 mailed March 



49-160.. 

 161-192.. 

 193-224 . 

 225-288.. 

 289-352. 

 353-368.. 

 369-400. 

 401-456 . 

 457-536.. 

 537-568.. 

 569 



EDWARD J. NOLAN, M.D., 



Recording Secretary. 



PUBLICATION COMMITTEE: 



Henry Skinner, M.D., Witmer Stone, 



Henry A. Pilsbry, Sc.D., William J. Fox, 



Edward J. Nolan, M.D. 



The President, Samuel G. Dixon, M.D,, LL.D., ex-officio. 



EDITOR: Edward J. Nolan, M.D. 



7/ n 



