APPEIDIX C. 



LIST OF AUTHORITIES REFERRED TO IN THE PRECEDING REPORT. 



In the present appendix I have endeavored to furnish as com2)lete a list as possible of the 

 articles and works quoted in the preceding pages. This I have not been able to do from personal 

 examination to so great an extent as in respect to the mammals, many titles, for want of time, 

 being copied from Engelmann's Bibliotheca Historico-Naturalis, although the works were 

 actually in the libraries of the Smithsonian Institution and of the Philadelphia Academy of 

 Natural Sciences. 



The list is not given as a complete bibliography of ornithology, but only of works necessary 

 to a proper understanding of the North American species ; and even in this connexion many 

 titles on the generalities of the subject have been omitted as not actually referred to. The 

 enumeration of particular papers on ornithology, entering into the question of synonymy, as pub- 

 lished in the United States, is believed to be pretty full. 



A few titles quoted in the last hundred pages of the report will not be found in the list, as 

 this was made up before the concluding manuscript of the volume was prepared. 



