IV PUBLICATIONS OF SPENCER F. BAIRD. 



works of Professor Baird, since it is he who, more than any one else, 

 has carried on the work of identifying and describing the material in 

 the National Museum, and since he has probably been one of the most 

 prolific of all contributors to the systematic zoology of the United 

 States. 



The writer has in preparation special bibliographies of Charles 

 GiRARD and Theodore Gill, but it is possible that before these can 

 be published others, by other writers, will be assigned a place in the 

 series. The one now most nearly ready for publication is that of Isaac 

 Lea, prepared by Mr. Newton P. Scudder. 



Washington, January 1, 1882. 



