426 BULLETIN OF THE 



APPENDIX TO PART V. 



LIST OF AUTHORITIES. 



In the following list are given the titles of general works and special 

 papers tliat may be profitably consulted in a study of the geographical 

 distribution of the birds of North America. An attempt has been made 

 to cite all the papers of much importance bearing upon this subject 

 that have appeared prior to the beginning of the year 1870, those pub- 

 lished in this country having been also brought down to the present 

 date (April, 1871). Some of those published in the transactions of for- 

 eign societies during 1869 have been necessarily omitted, as also a large 

 proportion of those published in 1870, since most of these publications 

 are usually several months in reaching this country. 



In compiling the present list I have been greatly aided by the 

 "List of Authorities" published by Professor Baird in the Appen- 

 dix of his Report on the Birds of North America in 1858 ; Agassiz's 

 " Bibliographia Zoblogia? " ; Carus and Engleman's ' ; Bibliotheca 

 Zoologica," ending with the year 1860 ; by Dr. G. Hartlaub's "Bericht 

 iiber die Leistungen in der Naturgeschichte der Vogel," in Wiegmann's 

 Archiv fur Naturgeschichte, and by Professor Alfred Newton's ad- 

 mirable ornithological record in Dr. Gunther's "Zoological Record."* 

 I am also indebted to Dr. Elliott Coues for the addition of the titles of 

 a considerable number of articles to the proof-sheets, which he has had 

 the kindness to carefully examine. The few titles enclosed in brackets 

 indicate those papers I have not myself consulted. 



In aiming at brevity I may have excluded from the list a few papers 

 that might well have been added. Usually papers mentioning less 

 than half a dozen species have been excluded, including announcements 

 of the capture of species at localities beyond their usual range. To cite 

 all such notices would nearly double the length of the list, without ma- 

 terially adding to its value, at least for general purposes. Papers in 

 which new species were described are frequently omitted where the 

 geographical data given in them have been subsequently incorporated 

 in other papers published by the same author. 



* The volume for 1869 I regret to find has not yet appeared. 



