mi 



The Academy of Natural Science? of Philadelphia. 



March 1, 1918. 



I hereby certify that printed copies of the Proceedings for 1917 were 

 mailed as follows: — 



Pages 1-80 -"^pril 6, 1917. 



" 81-128 -■ ^P"l 24, 1917. 



" 129-148 May 1, 1917. 



" 149-202 May 5, 1917. 



203-218 August 8, 1917. 



219-250 August 20, 1917. 



" 251-304 October 16, 1917. 



" 305-336..; February 1, 1918. 



" 337-352 February 27, 1918. 



EDWARD J. NOLAN, 



Recording Secretary. 





PUBLICATION committee: 



Henry Skinner, M.D., Sc.D., Witmer Stone, A.M., Sc.D., 



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



Edward J. Nolan, M.D., Sc.D. 



The President, Samuel Gibson Dixon, M.D., LL.D., Sc.D., ex-ofjficio. 



EDITOR: Edward J. Nolan, M.D., Sc.D. 



