N{ 30 l 



Academy of Natural Sciences of Philadelphia, 



March, 1880. 



I hereby certify that printed copies of the Proceedings for 1879 have been 

 presented at the meetings of the Academy, as follows : 



Pages 9 to 24 . . . . March 25, 1879. 



25 to 56 

 57 to 136 

 137 to 152 

 153 to 184 

 185 to 200 

 201 to 216 

 217 to 280 

 281 to 376 

 Page 377 et seq. 



April 

 May 

 July 

 August 



15, 1879. 

 13, 1879. 

 29, 1879. 

 12, 1879. 



. November 4, 1879. 



. December 2, 1879. 



. January 6, 1880. 



. February 17, 1880. 



. March 9, 1880. 



EDWARD J. NOLAN, 



Recording Secretary. 



PHTLADELPHIA I 

 COLLINS, PRINTER. 



