( I- ) 



Eeferences to various Essays and Writings on the Natural History of 

 New-York, mostly published subsequent to issuing the respective 

 volumes on that subject. 



MAMMALIA. 



Amiah \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 carounesis. 



5. Vespertilio subulatus. 



All of these are recognized by Dr. DeKay. 



BIRDS. 



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

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

 Anser nigricans, {Black-lellied Goose.) 



Sir Charles LyelVs 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 

 thirty years Mr. Mcllvaine has never been disappointed in seeing it 

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



