790 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [FoI.V. 



1837. Mackay, [E.] Siir lesmcenrs du Vultur [Sarcorliamplius] papa L. <X'j7i8«»- 



tut, V, No. 218, 1837, p. 263. 

 Pas vu moi-meme : le titr6 de Cams et Engelmann. Article extr. des P. Z. S., 1836, p. 107. 



1837. Owen, Richard. [Dissection of the Head of the Turkey Buzzard (Cathartes 



aura) and that of the Common Turkey. ] <^P.Z.S., v, 1837, pp. 34, 35. 

 1837. Sells, VV. [Ou the Habits of Cathartes aura.] <P. Z. S., v, 1837, pp. 33, 34. 



1837. Sells, W., and Owen, R. Extract from the "Proceedings of the Zoological 



Society " relating to the Habits of the Vultur [Cathartes] Aura. < Charlesw. 

 Mag. Nat. Hist., i, 1837, pp. 638-641. 

 Mr. "W. Sells' paper, with R. Owen's anatomical notes. 



1838. Mackay, "L." \i. e., R.] Ueber die Lebensart des Vultur [Sarcorhamphus] 



papa. < Olcen's Ms, Bd. xxxi, 1838, p. 207. 

 Auszfige aus Proceedings of the zoological society of London, iv, Hovember 1836, p. 107. 

 1838. Owen, Richard. Dissection de la t&tedu Vultur [Cathartes] aura. <^VIn8ti- 

 tut, vi. No. 243, 1838, pp. 277, 278. 

 Pas vue moi-meme. Extr. des P. Z. S., 1837, pp. 34, 35. 

 1838. ScHOMBURGK, R. H. On the Habits of the King of the Vultures (Sarcorrham- 

 phus papa). < Annals of Nat. Hist., ii, 1838, pp. 255-260. {Fror. Notizen, ix, 

 No. 195, 1838, pp. 289-293.) 



1838. Sells, W. [Sur les mceurs du Vultur (Cathartes) aura.] <^L'In8titut,Yi,'So. 



243, 1838, p. 277. 

 Pas vn moi-meme. Voir P. Z. S., 1837, pp. 33, 34. 



1839. Sells, W. Ueber das *Betragen von Vultur [Cathartes] aura. < Oken's Isis, 



Bd.xxxii,1839,p.l43. 

 P. Z. S. London, Marz 14, 1837, pp. 33, 34. 



1844. SCHOMBURGK, R. [H.] Ueber die Lebensart des Geyerkonigs (Sarcoramphtis 



papa). < OUn's Ms, Bd. xxxvii, 1844, pp. 673, 674. 

 Ann. Nat. Hist, ii, 1838, pp. 255-260. 



1845. Cassin, J. Description of a new Vulture [Cathartes burrovianus] in the Mu- 



seum of the Academy of Natural Sciences of Philadelphia. < Proc. Acad. Nat, 

 Sci. Phila., ii, 1845, p. 212. 



1846. Anon. [Exhibition of a foetal Condor. ] <^P.Z.S., xiv, 1846, p. 44. 



1846. Anon. [Exhibition of a foetal Condor.] <^Ann. Mag. Nat. ffis«. , xviii, 1846, p. 



129. 

 ■From P. Z. S., May 12, 1846. 



1847. GossE, P. H. John-Crow Vulture, (Turkey-buzzard, Wilson; Cathartes aura, 



Vulture atira, Linn; Cathartes aura Illiger.) Ann. pi. 151. <^Edinh. New 

 PMlos. Journ. , xliii, 1847, pp. 90-94. 



Extract from " The Birds of Jamaica," p. 1. On its habits, especially with reference to 

 the senses of sight and smell. 

 1847. TsCHUDi, J. J. [v.] The Condor [Sarcorhamphus gryphus] of the Cordillera. 



< Edinb. Neiv Pkilos. Journ, xlii, 1847, pp. 387-389. 

 Extract from his "Travels in Peru," p. 300. 



1847. TsCHUDi, J. J. V. The Condor [Sarcorhamphus gryphus]. < Zoologist, v, 1847, 

 pp. 1772, 1773. 

 Extract from "Travels in Peru." 



1847. TSCHUDI, J. J. [v.] Sur le condor [Sarcorhamphus gryphus] des cordillferes. 



< Arch, des Sc. Phijs. et Nat., vi, 1847, pp. 177, 178. 



Voyages au Perou, p. 300 ; Edinb. New Phil. Journ., avril 1847, pp. 387-389. 



1848. TOWNSEND, J. K. Popiilar Monograph of the Accipitrine Birds of N[orth]. 



A[merica].— No. I [II]. < Lit. Eec. and Journ. Linn. Assoc, of Penna. College, 

 iv, 1848, pp. 249-255, 265-272. 



Only these two Numbers of the "Monograph" appeared, consisting of extended general 

 accounts of Cathartes [Sarcorhamphus] gryphus, O. cali/omianus, 0. aura, and certain Fah 

 eonidce. 



