Vol. XIX Eleventh Supplement to A. O. U. Check-List. 2 15 
1902 
ELEVENTH SUPPLEMENT TO THE AMERICAN 
ORNITHOLOGISTS’ UNION CHECK-LIST OF 
NORTH AMERICAN BIRDS.! 
THe Committee met in Washington, April 17 to 23. All the 
members were present and took part in the work, four of them 
continuously, and three of them during the greater part of the 
session. Its work was greatly facilitated by previous reference 
of a large part of the questions to subcommittees, which sub- 
mitted reports for the information and consideration of the com- 
mittee on the special questions assigned them for investigation. 
As at previous meetings of the Committee, it was found nec- 
essary to defer many cases owing to lack of material for their 
satisfactory investigation. All questions affecting the status of 
genera, subgenera and higher groups were again deferred. As 
heretofore, discrepancies in nomenclature arising from taking 
the 12th instead of the roth edition of Linnaus’s ‘Systema 
Nature’, and cases already settled by the Committee and raised 
merely as the expression of an author’s opinion or preference, 
without the presentation of new evidence adverse to the Com- 
mittee’s ruling, were regarded as not requiring reinvestigation. 
Several cases of generic names, where the substitution of one 
name for another depends on whether a name is tenable when 
merely an orthographical variant of another, were deferred for 
special consideration at the next meeting of the Committee, to be 
held in Washington next November. 
(C. Hart Merriam, Chairman. 
J. A. ALLEN. 
| WILLIAM BREWSTER. 
Committee ~ JONATHAN DwiGutT, JR. 
CHARLES W. RICHMOND. 
| Ropert RipGway. 
| WITMER STONE. 
1 Three Supplements have been issued since the publication of the Second 
Edition of the Check-List in 1895: 
Eighth Supplement, Auk, XIV, 1897, pp. 117-135. 
Ninth Supplement, Auk, X VI, 1899, pp. 97-133- 
Tenth Supplement, Auk, X VIII, 1901, pp. 295-320. 
