REFERENCES. 



MAMMALIA. 



Annals of the New-York Lyceum of Natural History , vol. 4, p. 53. 

 Description of five species of Vespertilio, that inhabit the environs of 

 New-York, by William Cooper : 



1. Vespertilio pruinosus. 



2. Vespertilio noveboracensis. 



3. Vespertilio noctivagans. 



4. Vespertilio carolinensis. 



5. Vespertilio stjbulatus. 



All of these are recognized by Dr. DeKay. 



BIRDS. 



Annals of New-York Lyceum, vol. 4, p. 51. Notice of the appearance 

 of the Pine Groesbeak, (Pyrrhula enucleator,) in the vicinity of New- 

 York. By James F. Ward. 



Annals of New-York Lyceum, vol. 4, p. 171. Description of a new- 

 species of Anser, by George N. Lawrence. Read March 18, 1846, 

 Anser nigricans, (Black-bellied Goose.) 



Sir Charles LyeWs Second Visit to the United States, vol. 2, p. 247, 

 American edition. " In Wilson's Ornithology it is stated that the 

 Hummingbird migrates from the south to Pennsylvania, the latter part 

 of April and builds its nest there about the middle of May. For the last 

 + hirty years Mr. Mcllvaine has never been disappointed in seeing it 

 reach Burlington, in New Jersey, on the banks of Delaware, the first 



