26 Aves. 
A"VES. 
Theel’s report. The observations on Sturnus vulgaris and allies, Lanius 
homeyeri and congeners, and Cinclus, are especially full and interesting. 
[Seebohm, H.] Siberia in Europe : a Visit to the Valley of the Petchora 
in North-east Russia, with Descriptions of the Natural History, 
Migration of Birds, &c. ; with Maps and Illustrations. London : 
1880, 8 VO, pp. 303. 
A graphic narrative of the author’s first visit to Siberia with J. A. 
Harvie Brown, supplementing the account of those ornithological dis- 
coveries which have already been made known through the “Ibis.” [Cy*. 
Zool. Rec. xiii. Aves, p. 29.] 
. See also Turdus dissimilis, Geocichla innotata\_Turdid(e\ ; Sylviidw, 
Oiiculidce, Platalceidce. 
Semper, Karl. Die natiirlichen Existenzbedingungen der Thiere. 
Leipzig ; 1880, woodcuts, maps. English translation, “ The Natural 
Conditions of Existence as they affect Animal Life.” London : 
1881 [1880], sm. 8vo, pp. 472. 
Contains numerous observations on the distribution, variations, and 
powers of adaptation in birds. 
Serre y Savatier. Aves procedentes de los viajes de esploracion de la 
Magicienne. Cronica cientifica. Sept. 1879. 
[Not seen by the Recorder.] 
Severtzow, N. Etudes sur le passage des Oiseaux dans I’Asie Centrale, 
particulierement par le Ferghanah et le Pamir. Bull. Muse. 1880, 
pp. 234-287, map [to be continued]. 
The first portion of a valuable treatise on the lines of bird-migration, 
giving the result of the writer’s wide experience during the Russian 
scientific expeditions from 1877-1879, and also embodying the observa- 
tions of our Indian and other naturalists in Central Asia. The map is 
from Stieler, corrected by the author. 
Sharpe, R. B. “ Aves,” in Cassell’s Natural History, illustrated. 
London : 1880, 4to, ii. pp. 101-240. [Conclusion; c/*. Zool. Rec. xvi. 
Aves, p. 33]. 
See also Tanysiptera danace, sp. n , Clytoceyx rex, g. & sp. nu. 
\^Alcedinid(je\ Accipiier [Falconidw]. 
Shelley, G. E. A Monograph of the Nectariniidee, or Family of the 
Sun-Birds. Pts. xi.-xii. [Qf. Zool. Rec. xvi. Aves, p. 33.] 
This handsome work is now concluded, the last part containing the 
introduction, &c., and a valuable synopsis of the literature, and the geo- 
graphical distribution. 
. See also Cisticola rhodoptera, Fhyllostrephus sharpii {^Timeliidce'], 
Barhatula olivacea [^Capitonidee'], Amydrus walleri [^Sturnidoi], spp. nn. 
SiBREE, Jas., Junr. The Great African Island: Chapters on Mada- 
gascar. London : 1880, 8vo. 
Popular notices of the birds, and also of the folk-lore and superstitious 
connected with them, are to be found in chaps, iii. and xiv. 
