324 PROCEEDINGS OF THE ACADEMY OF [April, 



April 5. 



The President, Samuel G. Dixon, M.D,, in the Chair. 



Twenty persons present. 



Mr. Arthur Erwin Brown made a communication on post-glacial 

 centres of dispersal for reptiles in North America, the substance of 

 which will be embodied in a paper to be presented later. 



The following were ordered to be printed : 



