1040 BULLETIN UNITED STATES GEOLOGICAL SUEVEY. ]Tol.Y. 



1849. GURNEY, J. H. Occurrence of the Eared Grebe (Podiceps auritus) in Norfolk. 



< Zoologisi, vii, 1849, p. 2456. 



1850. Ellman, J. B. Occurrence of the Sclavonian Grebe (Podiceps cornutus) at Pid- 



dinghoe, Sussex. < Zoologist, viii, 1850, p. 2775. 

 1850. Foster, T. W. Occurrence of the Eared Grebe (Podiceps auritus) on Whittle- 

 sea Wash, < Zoologist, viii, 1850, p. 2775. 



1850. Garth, J. C. Occurrence of the Eed-necked Grebe (Podiceps rubicollis [sic]) 



near Burton-on-Trent. < Zoologist, viii, 1850, p. 2706. 

 1850. Plant, J. Occurrence of the Horned Grebe (Podiceps cornutus) at Manchester. 



< Zoologist, viii, 1850, p. 2924. 



1850. EODD, E. H. Occurrence of the Eed-necked Grebe (Podiceps ruficollis) near 



Penzance. < Zoologist, viii, 1850, p. 2803. 

 1850. SUNDEVALL, C. J. Podiceps arcticus, cornutus, auritus. < Ofv&rs. Kongl. Ve- 



tensJc.-Akacl. Forhandl. for ar 1849, 1850, pp. 206-210. 

 P. auritus 1..= P. cornutus Lath. + P. arcticus. P. nigricoUis, n. sp.=P. auritus auct. 



Cf. Yet.-Akad. Arsb. i Zool., 1845-50, p. 299; Arch./. Naturg., xvi, 1850, p. 44. 



1850. SUNDEVALL, C. J. Ueber Podicipes arcticus, cornutus, auritus. <^Arch.f. Na- 



turg. , 1850, (1), pp. 44-48. 

 Aus Ofv. K. Vet.-Akad. F'orh., aus d. Jalir 1849, SS. 206-210, q. v. 



1851. Green, J. Occurrence of the Eared Grebe (Podiceps auritus) at Yarmouth. 



< Zoologist, ix, 1851, p. 3175. 



1851. IRBY, L. H. Occurrence of the Eed-necked Grebe (Podiceps rubricolUs) in Dev- 

 onshire. < Zoologist, ix,- 1851, p. 3035. • 



1851. Joshua, W. Occurrence of the Eednecked Grebe (Podiceps rubicollis [sic]) in 

 Gloucestershire. < Zoologist, ix, 1851, p. 3056. 



1851. Strangewayes, E. Occurrence of the Eared Grebe (Podiceps auritus) at Yar- 

 mouth. < Zoologist, ix, 1851, p. 3117. 



1851. Strangewayes, E. The Great Crested Grebe (Podiceps cristatus) in Norfolk 



< Zoologist, ix, 1851, p. 3209. 



1851. [SUNDEVALL, C. J.] Podiceps uigricollis. < Ofvers. Kongl. Vetensk.-Akad For- 



handl. for ar 1850, 1851, pp. 291, 292. 



1852. IRBY, L. H. Curious Death of a Dab-chick, or Little Grebe, (Podiceps minor) 



< Zoologist, X, 1852, p. 3711. 



1852. Newman, E. Occurrence of the Eared Grebe [Podiceps auritus] at Yarmouth 



< Zoologist, X, 1852, p. 3477. 



1854. Gloger, C. W. L. Der Schwanz der Steissfiisse [u. s. w.]. J. /. 0. ii 1854 p. 

 480. ' ' 



An extra^it from Audubon's Ornith. Biogr., iii, p. 598, on the structure of the taU of 

 Podiceps cristatus. 



18.55. Davis, E. [On the breeding of Podiceps auritus in Ireland. ] < Nat. Hist Eev 

 ii, 1855, p. 20. *' 



1856. D'Urban, W. S. M. Occurrence of the Sclavonian Grebe (Podiceps cornutus) in 

 Devonshire. < Zoologist, xiv, 1856, p. 5065. 



1856. Walker, A. 0. Occurrence of the Eared Grebe [Podiceps auritus] in Flintshire. 



< Zoologist, xiv, 1856, p. 5321. 



1857. Clermont, Lord. On the occurrence of the Eared Grebe [Podiceps auritus, in 



Ireland]. < Kai. Hist. Rev. (Pr. Soc), iv, 1857, p. 72. 



1857. SCHLUTEK,W. Schwarze Eier von Podiceps cristatus. < J. /. O. , v* 1857, pp. 

 302, .303. ^ -^ ,y,o,,yy. 



1862. COUES, E. Synopsis of the North American Forms of the Colvmbidaj and Podi- 

 cipidJB. < Proc. Acad. Xat. Sri. Phila. , xiv, 1862, pp. 226-233*. 



Abstract of a monograph, published in 1874 in the author's ' Birds of the Northwest ' q. v. 

 Ihe Grebes are considered as a family apart from Golymbidce, with two subfamilies, Podi- 



