14 LIST OF CONTRIBUTORS. 



Cassin, John. Continued. 



Description of a new rapacious bird in the museum of the 



Academy of Natural Sciences of Philadelphia. P '47, 199 



Description of a new Buceros, and a notice of the Bueeros 



elatus (Temm), both of which are in the collection of the Acad- 

 emy of Natural Sciences. P '47, 330 



Descriptions of three new species of the genus Icterus 



(Briss) ; specimens -of which are in the museum of the Academy 

 of Natural Sciences. P '47, 333 



— On the diet of monkeys in captivity. P '48, 3 



— Descriptions of new species of the genus Cyanocorax (Boie), 

 of which specimens are in the collection of the Academy of 

 Natural Sciences in Philadelphia. P '48, 26 



Descriptions of new species of birds of the genera Vidua 



Briss; Euplectus Sw. ; Pyrenestes Sw. ; and Pitylus Cuv. ; speci- 

 mens of which are in the Academy of Natural Sciences in Phila- 

 delphia. P '48, 65 



Description of a new Tanagra, in the collection of the Acad- 



emy of Natural Sciences of Philadelphia. P '48, 85 



Catalogue of birds collected by Mr. William S. Pease, during 



the march of the army of the United States from Vera Cruz 

 to the City of Mexico. P '48, 87 



Descriptions of owls, presumed to be undescribed, speci- 



mens of which are in the collection of the Academy of Natural 

 Sciences of Philadelphia. P '48, 121 



Descriptions of new species of the genera Nyctale Brehm, 



and Syeobius Vieill. ; specimens of which are in the Academy 

 of Natural Sciences of Philadelphia. P '49, 157 



Notes of an examination of the family VulturidsB, in the 



collection of the Academy of Natural Sciences of Philadelphia. 

 P '49, 158 



— On Anas rafflesii. P '49, 195 



— Descriptions of new species of birds of the family Caprimul- 

 gidse, specimens of which are in the collection of the Academy 

 of Natural Sciences of Philadelphia. P '49, 236 



— Catalogue of the Strigidge in the collection of the Academy of 

 Natural Sciences of Philadelphia. P '49, Suppl. 



Catalogue of the Vulturidse in the collection of the Academy 



of Natural Sciences of Philadelphia. P '49, Suppl. 



Descriptions of new species of birds, specimens of which 



are in the Academy of Natural Sciences in Philadelphia. P '50, 

 56 



