c 





SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOLUME 139, NUMBER 11 



(End of Volume) 



A CLASSIFICATION FOR THE 

 BIRDS OF THE WORLD 



By 



ALEXANDER WETMORE 



Research Associate, Smithsonian Institution 



(Publication 4417) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



JUNE 23, 1960 



