x 
In collecting biographical data valuable aid has been received 
from a number of sources not directly connected with the American 
Ornithologists’ Union. Among these should be mentioned the Bio- 
graphical Department of the American Medical Association, the His- 
torical Society of Wisconsin and the Library of the Zoological 
Society of London. Among individuals are T. J. Ashe of Key West, 
Fla.; James Buckland of London, England; M. Vladimir Genero- 
soff of Petrograd, Russia; Ernst Hartert of Tring, England; S. W. 
Linebaugh of Russellville, Ky.; Dr. Einar Lonnberg of Stockholm, 
Sweden; R. B. Rockwell of Denver, Colo.; Dr. Eugene Swope of 
Cincinnati, O.; Walter R. Welch of Capitola, Calif.; and Dr. B. B. 
Woodward, Librarian of the British Museum of Natural History, 
London. To these and all others who have rendered assistance the 
thanks of the committee are due. 
In preparing the index cards and the copy for the press the greater 
part of the work has fallen on the secretary of the committee, Prof. 
W. W. Cooke, who has also read the proof with special reference to 
the accuracy of the citations under the scientific names. Finally, 
mention should be made of the painstaking care of the printers who 
have sought in every way to make the Index as accurate as possible. 
T. S. PALMER, 
Chairman of the Index Committee. 
WasuinerTon, D. C., Jan. 1, 1915. 
