PROCEEDINGS 



OF THE 



ACADEMY OF NATURAL SCIENCES 



OF PHILADELPHIA. 

 1863. 



January Qth. 

 Vice-President Bridges in the Chair. 

 Fifteen members present. 



January loth. 

 Mr. Jeanes in the Chair. 

 Eleven members present. 



January 20th. 

 Vice-President Vaux in the Chair. 



Eleven members present. 



On motion, a vote of thanks was tendered to Mr. P. F. Saurtnan 

 for a collection of mounted, native birds, presented by him this even- 

 ing to the Academy. 



January 27th. 



The President, Mr. Lea, in the Chair. 



Twenty-two members present. 



On report of the Committee the following paper, read December 23d, 

 1862, was ordered to be published : 



1863.] 1 



