THE GENERAL SUBJECT. 
Aves 3 
Adams, C. F. [See Elliot, D* G.] 
Allen, J. A. To what extent is it profitable to recognize Geographical 
Forms among North American Birds ? Auk, 1890, pp. 1-9. 
. On the Maximilian Types of South American Birds in the 
American Museum of Natural History. Bull. Am* Mus. Nat. Hist, 
ii, pp* 209-276. [Omitted from Zool. Rec. xxvi*] 
. [See also Troglodytidce ) Icteridce. ] 
Anthony, A. W. New Birds from Lower California and Mexico. Proc. 
Cal. Ac. Sci. (2) ii, pp. 73-82. [ Perdicidce , Corvidce, Fringillidce , 
CertJiiidce , TurdidceJ] 
Applin, O* Y. [See Ballidce, Motacillidas .] 
Backhouse, I. A Handbook of European Birds for the use of Field 
Naturalists and Collectors. London : 8vo, 1890, pp. i-viii & 1-334. 
Bagg, E. [See Ralph, W, L.] 
Barker, D. W. On the Flight of Oceanic Birds. Nature, xliii, p. 223. 
[Of. also <1. R. Spears, U c. p. 318*] 
Barnes, H* E. Nesting in Western India. J, Bomb. N* H. Soc. v, 
pp. 1-19, 97-116, 315-337, with 3 pis. [Sylviidce, Zosteropidce , 
Diceidcu , ] 
Barrington, R* M. A List of Birds observed in Shetland, June, 1890* 
Zool. 1890, pp. 345-348. 
* [See also Stercorariidce.] 
BeckWith, W. E. Notes on Shropshire Birds. Tr* Shropshire Soc* (2) 
ii, pp. 303-318. [Of. Eool. Rec. xxvi, Aves f p. 6.] 
Beddard, F. E. Some problems relating to the Colours of Animals. 
Rep. Ealing Soc. 1889, pp. 53-56. 
. [See Cry ptur formes, Cathartidiformes , Striges, Podicce i Psophim.] 
Belding, L* Land Birds of the Pacific District. Calif* Acad. Soi., Oco. 
papers, pt* 2, pp. 1-274. 
. [See PurdidmJ] 
Bendire, C* E. [See Corrida ; , Fringillidce.'] 
Berlepsch, H. von, & Leverkuhn, P* Sttidien tlbef eitiige Sii<E 
amerikanische Yogel nebst Beschreibungen neuer Arten* Ornis, vi, 
pp. 1-36, taf. 1 & 2* 
[See Troglodytidce ) Musclcdpidcc , Dendrudolaptidcb , Formicariidce, and 
Coliimbai.] 
Big non, F. [See Plateau, F.] 
Bizzozero, G. Nuove ricerche sulla Struttiira del Midollo delle Ossa 
negli Uccelli* Atti Ac. Tor. xxv, pp. 156-192. 
Blanchard, R. Anomalie du plumage chez un Pigeon -paon. Bull. Soc. 
Z. Fr. xv, p* 92* 
