CONTENTS 



PAGE. 



Officers and Council elected January, 1885 vii 



Standing Committees, 1S85 viii 



Officers and Council elected January. 1886 ix 



Standing Committees, 1886 x 



List of Members. January 23. 1886 xi 



Constitution xxv 



Proceedings, November 1, 18S4. to February 6, 18S6 xxix 



Addresses and Communications I 



Tbe Application of Biology to Geological History; Annual Address 



of tbe President, Charles A. White. January 24, 1S85 .... 1 

 Description of some new species of birds from Cozumel Island, 



Yucatan. Robert Ridgway (February 26. 1885*) 21 



Description of a new species of Chipmunk from California (Tamias 



macrorhabdotcs. sp. now). C. Hart Merriam (January 27, 



1886*) 25 



On a new method of producing immunity from Contagious Diseases, 



D. K. Salmon and Theobald Smith (February 22, 1886*) ... 29 

 The Beginnings of Natural History in America; Annual Address of 



the President, G. Brown Goode, February 6, 1886 35 



Additions to the flora of Washington and Vicinity, from April 1, 



1884, to April 1, 1886, F. H. Knovvlton 106 



* Author's extras of each of the special papers here enumerated were published at the date 

 given iu pai-entheses following the author's name. 



V 



JL I 



! ' 



