PREFACE TO SECOND EDITION. 17 



"9. That the names of subgeneric and supergeneric groups of North 

 American birds be included in the List in systematic order, to the end that the 

 List may represent a classification as well as a nomenclature of the birds. 



"10. That references be given to the original description of the species, 

 and to the publication where the name as adopted in the List was first used; 

 that the number borne by each species and subspecies in the Lists of Baird, 

 1858, of Coues, 1873, of Ridgway, 1880, and of Coues, 1882, be bracketed in 

 chronological order after the synonymatic references. 



"11. That a summary statement of the habitat of each species and sub- 

 species, with special reference to its North American range, be included in the 

 List. 



"12. That the name of each bird shall consist of its generic without its 

 subgeneric name, and of its specific with its subspecific name, if it have one, 

 without the intervention of any other term. 



" 14. That every technical name be followed by a vernacular name, selected 

 with due regard to its desirability. 



"15. That the name of each species and subspecies be followed by the 

 name of the original describer of the same, to be enclosed in parenthesis when it 

 is not also the authority for the name adopted. 



"16. That all specific and subspecific names shall begin with a lower-case 

 letter. 



"17. That the sequence in classification followed in previous Lists be 

 reversed, the List to begin with the lowest or most generalized type, and end 

 with the highest or most specialized." 



ELLIOT COUES. 

 J. A. ALLEN. 

 WILLIAM BREWSTER. 

 C. HART MERRIAM. 

 ROBERT RIDGWAY. 



