944 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Tol.Y. 



1842. Yarkell, W. [ Ou the Trachea of Plectropterusgambensis.] <^Ann.Ma(j.Nat. 



Hist, ix, 1842, p. 147. 

 From P. Z. S., Sept. 14, 1841. 



1843. BoNAPAKTE, C. [L.] Ueber Querquedula angustirostris. <^0]cen's Isie, Bd. 



xxxvi, 1843, pp. 403, 404. 

 Atti. Eiun. Sci. Ital. Firenze, 1841, p. 317. 



1844. Axon. Note on a prolific Duck [180 eggs in one season]. < Zoologist, ii, 1844, 



p. 727. 



1844. Anon. Note on the Nidification of Swans [Cygnus sp.]. <^ Zoologist, ii, 1844, 

 p. 669. 



1844. Fisher, W. R. Notes on Ducks nesting in Trees. <i Zoologist, ii, 1844, pp. 



767, 768. 



1844. G[erbe], Z. [L'Oie d'Egypte (Anser [Chenalopex] segyptiacus), une espfece 

 d6finitiTement acquisc k I'omithologie europ^enne. ] < Bevue Zoologique, vii, 

 1844, pp. 441, 442. 



1844. GURNEY, J. H, Note on the occurrence of the Eed-crested Whistling Duck 

 [Fuligula rufina] in Norfolk. < Zoologist, ii, 1844, p. 576. 



1844. Hardy, J. Enquiry respecting the manner in which the newly- hatched Wild 

 Duck is conveyed to the Water. < Zoologist, ii, 1844, pp. 669-671. 



1844. Mansell, T. Note on the occurrence of the Scoter [(Edemia nigra] near Fam- 



ham. < Zoologist, ii, 1844, p. 455. 



1845. Bartlett, J. P. Occurrence of the Gadwall [Chaulelasmus streperus] in Kent. 



<^Zoologist, iii, 1845, pp.1025, 1026. 



1845. Dashwood, J. M. Description of an Egg of the Common Duck [Anas hoschas]. 



< Zoologist, iii, 1845, p. 1077. 



1845. Fisher, W. E. Description of a New Duck. < Zoologist, iii, 1845, pp. 1137, 

 1138. 



Apparently a hybrid between the Common and White-eyed Pochard, Fuligula ferina and 

 F. nyroca. This is "Paget's Pochard," which later became Fuligula ferinoides, BartL, P. 

 Z. S., 1847, p. 48. 



1845. Frere, H. T. Occurrence of Bewick's Swan [Cygnus bewickii] near Somersham 



and Godmanchester. < Zoologist, iii, 1845, pp. 942, 943. 

 1845. Gerbe, Z. Note sur le Cygne Bewick. (Cignus [sic] Bewickii). <^Ilevue 



Zoologiqzie, viii, 1845, pp. 244-247. 

 Comparaison avec le Cygne sauvage. 

 1845. Hewgill, J. Enquiry respecting a species of Duck. <^ Zoologist, iii, 1845, -p. M3. 

 1845. Newman, E. Note on Ducks &c. nestling in Trees. < Zooloqist, iii, 1845, pp. 



878,879. 



1845. Newnham, W. O. Eeicarkable Duck's Egg. < Zoologist, iii, 1845, p. 1077. 

 Egg in egg. 



1845. SCLATER, P. L. Occurrence of Aquatic Birds [3 spp. Auatidas] near Odiham. 



< Zoologist, iii, 1845, p. 1077. 



1845. Selys-Longchamps, E. de. Eecapitulation des hybrides observ^es dans la 



famine des Anatiddes. < Bull. Acad. Bruxelles, xii, 1845, pp. 335-355, 

 Pas Tue moi-meme: le titre tir6 de Cams et Engelmann. 



1846. Anon. Occurrence of the Black Swan (Cygnus atratus, Bennett), in Scotland. 



< Zoologist, iv, 1846, pp. 1501, 1502. 



1846. Bartlett, A. D. Eine fiir England neuo Gans [Anser phcenicopus] TergHchen 

 mit andern. < OMi's Isis, Bd. xxxix, 1846, pp. 559-560. 

 P. Z. S., vii, 1839, p. 2. 



1846. Bell, E. J. Occurrence of Steller's Western Duck [Fuligula dispar] at Filby 

 in Yorkshire. < Zoologist, iv, 1846, p. 1249. 



