942 BULLETIN UNITED STATES GEOLOGICAL SURVEY. lYol.Y. 



1838. Bartlett, a. D. Plumage of the Smew [Mergellus albellus]. <] CharJcsxc. 

 Mag. Nat. Eist., ii, 1838, p. 398. 



1838. Blainville, [M. H. D.] de. R'emarques de M. de Blainville ^ I'occasion de 

 la lettre precedente [par M. Baillon, sur le cygne de Bewick (Cygnus be- 

 wickii)]. < Compt. Bend, de VAcad. Sci. Paris, vii, 1838, p. 1022-1026. 



1838. Blainville, [M. H. D.] de. [Sur quelqiies points iut6ressans de I'histoire des 

 Cygnes. ] <^ Bevue ZooJogique, i, 1838, pp. 307, 308. 



1838. Blyth, E. Adult plumage of the female Smew [Mergellus albellus] . <[ Charlesw. 



Mag. Nat. Sist. , ii, 1838, pp. 395, 396. _ 



1838. Blyth, E. Plumage of the Smew Merganser [Mergellus albellus]. <^ Charlesw. 9 



Mag. Nat. Hist., ii, 1838, p. 451. 



1838. Eyton, T. C. a Monograph of the Anatidse or Duck-tribe, . . . Loudon. 



Longmann & Co. 1838. 4to. pll. 24, many cuts. 

 Not seen. . 



1838. Lesson, E. P. Description faite sur la nature du Grand Harle on du Merganser 



[Mergus merganser]. <^ Bevue Zoologique, i, 1838, pp. 8-10. 



1838. Naumann, J. F. Zwei Arten Singschwane in Deutschland. <^Arch. f. Naturg., 



1838, (1), pp. 361-371, Taf. viii, ix. 



Nebst Zusatzeu vom Herausg., pp. SC7-371. Cygnus musimis, pi. viii, tigg. a-d; 0. islandi- 

 cus, pi. viii, flgg. 2 e-h ; G. bewickii, pi. is. 



18.38. Yakrell, W. [On a New Species of Swan (Cygnus immutabilis).] < P. Z. S., 

 vi, 1838, p. 19. 



1838. Yarrell, W. Beschreibung des Stimmorgans eines [kiirzlich] neuen Schwans, 



Cygnus buccinator Richardson. < OJcen's Isis, Bd. xxxi, 1838, p. 404. 

 Aus d. Linn. Trans., xvii, pt. iv, 1837, pp. 1-4. 



1839. Baillon,—. [Ueber Cygnus bewickii.] <OA;ew's Jsis, Bd. xxxii, 1839, pp. 394, 



395. 

 L'Institut, Nr. 260, p. 420. 



1839. Bartlett, A. D. On a new British species of the genus Auser [phcenicopus], 

 with remarks on the nearly-allied species. < P. Z. -S., vii, 1839, pp. 2-4.. 

 Treating of .4.. segetum, A. cinereus, A. albifrons, A. phosnieopus, sp. n., p. 8. 



1839. Blainville, [M. H. D.] de. [Ueber die Arten der Sippe Cygnus.] <^Oken's 

 Isis, Bd. xxxii, 1839, p. 395. 



L'Institut, Nr. 260. 



1839. Lesson, E. P. Note sur le genre Cygne. <Pe«MeZoo?o6ri<j'»e,ii, 1839, pp. 321-324. 



Synopsis de 8 esp^ces. 



1839. Pelerin, W. G. On the Structural differences observable in the Crania of the 

 four British Species of the Genus Cygnus. < Cliarhsw. Mag. Nat. Hist., iii, 



1839, pp. 178-180, fig. 29. 



1839. Proctor, W. Clangula barrovii [islandica], a Native of Iceland. < Ann. Nat. 

 Hist., iv, 1839, pp. 140, 141. 



1839. Reinhardt, .1. Om den islandske Svane [Cygnus islandicus]. <^ Knfiyei-'a 

 Naturhist. Tidslc, ii, 1839, pp. 527-532. 



1839. RUPPELL, E. Omithologische Miscellen. . . . <^Mus. Senckenh., iii. Heft i, 

 18.39, pp. 1-44. 

 Mir niclit ziiganglich. Monographieen der Gattnng Cygnus, u. s. av. 



1839. EuPPELL, [E. ] Allgemeine Bemerkungen i^ber die Gattungen der Schw^ne und 



eine besondere Beschreibung von Anas gambensis. < Oken^s Isis, Bd. xxxii, 

 1839, p. 713. 

 Auszug aus Mus. Senkenh., iii, Heft i, 1839, p. 1. 



1840. Derby, Earl of. [Note on certain hybrid Auatid*. ] <^P.Z.S., viii, 1840, p. 33. 



