PREFACE TO SECOND EDITION. lie 
“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. 
