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(12s. post tree), Beets 
Cases for binding 1911 can be had, price Is. 2, post 
free. Bound volumes for 1911, price 14s. post free. 
BACK NUMBERS and VOLUMES of the *ZOOLO- ; 
GIST’ can be had AT CHEAP RATES, especially for 
long series, on application to West, Newman & Co. 
London: WEST, NEWMAN & CO., 54, Hatton Garden. 

Foolscap 8vo, Cloth, gilt top, 160 pp. + blanks for Notes. Price 2s. 6d. 
POCKET. BOOK of BRITISH BIRDS 
By E. F. M. ELMS. 
NFORMATION is given respecting all British birds that breed in these islands, 
and those that are regular visitors at one time of the year or another, with 
remarks as to a species being resident, intermigratory, or migratory. Hach species 
is separately treated under the headings: Haunts, including distribution ; Plumage, — 
briefly characterizing the predominant and striking features, with differentiation of 
species nearly alike; Language, with song and various cries; Habits; Food; Nidi- 
fication, with site and materials of nest; and number and description of Eggs. 
982 pp. CrotH Extra. 6s. 6d. Post FREE. 
Aristotle s Researches in Natural Science 
By THOMAS E. LONES, M.A, LL.D. B.Sc. - 
With Illustrate Drawings. — 
Contents : : 
Introductory—Method of Investigation—Celestial, Atmospheric, and 
Terrestrial Phenomena—Light and Colour, Heat and Sound—Animals, 
Plants, and Inanimate Matter—Dissections—Homceomeria—Anhomceo- 
meria and their functions—Animal Motion—Generation and Develop- 
ment—Classification of Animals—Anaima, or Animals without Blood— 
Enaima, or Animals with Blood. 

“This is a very interesting book, and we commend it heartily to readers of 
‘Nature.’ ”’—WNature. 
BIRDSNESTING & BIRD=SKINNING. A Complete 
Description of the Nests and Eggs of Birds which Breed in Britain, 
by Epwarp Newman. — Sreconp Eprrion, with Directions for Collecting and 
Preservation ; a Chapter on Bird- skinning ; and Description and Wooden 
the Instruments necessary to the Collector. By Mitter Curisty. Cloth 
Feap 8vo. Price 1s. Postage 2d. ie 



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