Vlll INTRODUCTION. 



M. Parrey's Collection, as having been determined by Russian 

 naturalists, and authenticating the species described by 

 Pallas, Brandt, Eversmann and others. 



M. Auduborfs Collection, as the types of the species figured 

 in his large work on the " Birds of America." 



Mr. Cuming s Collection, as the individuals described by 

 Mr. Frazer in the " Proceedings of the Zoological 

 Society," and by Mr. G. R. Gray in the " Annals of 

 Natural History." 



*Mr. GoulcPs Collection, as the originals of the species de- 

 scribed by that author in the "Proceedings of the 

 Zoological Society," and figured in the " Birds of 

 Australia." 



Baron Laugiers Collection, as the types of species in his 

 and M. Temminck's " Planches Coloriees," 



Colonel Montague's Collection, as the types of species de- 

 scribed by that author in the " Ornithological Dic- 

 tionary " and other works. 



Mr. RendalVs Collection, as the types of species described 

 by Mr. Swainson in his " Birds of Western Africa." 



M. Verreautf Collection, as being the types of species de- 

 scribed by Dr. A. Smith in his "Zoology of South 

 Africa." 



&c., &c. 



JOHN EDWARD GRAY. 



British Museum, 

 12th February, 1848. 



