

APPENDIX A. 



LIST OF AUTHORITIES REFERRED TO IN THE PRECEDING REPORT. 



In the present Appendix I have endeavored to furnish as complete an account as possible of 

 the articles and works quoted in the preceding pages. They have nearly all been examined 

 by myself, with reference to the present report ; and the few titles which have not fallen under 

 my observation, but have been borrowed from other authors, will be found placed between 

 quotation marks. Whenever these marks do not occur, either here or in the synonymy of the 

 report itself, the references are to be understood as having been personally verified. 



All the works referred to without quotation marks are to be found in the library of the 

 Smithsonian Institution, unless some other depository be assigned, such as the library of the 

 Philadelphia Academy of Natural Sciences, and a few others. In many cases, where the works 

 previously consulted were not at hand when preparing this list, abstracts only, either of the 

 volumes or of their contents, have been given, instead of the full title of each separate article, 

 unless these were to be found in the Nomenclator Zoologicus and Bibliographia Zoologiae 

 of Professor Agassiz, or in the Bibliotheca Historico-Naturalis of Engelmann. Of these 

 important bibliographical aids I have made free use throughout, although I have copied the 

 titles, as far as I could conveniently, from the works themselves. The titles given between 

 quotation marks have, however, in nearly all cases, been taken from the volumes just mentioned. 



