WATKINS & DONCASTER, 



Manufacturers of Cabinets and Apparatus for 

 Collectors of Birds' Eggs, Insects, Plants, &c. 



A large stock of Insects, Birds' Eggs, &c. List of Clutches of Birds' 

 Eggs on application. Climbing Irons, best steel, with straps complete, 

 -OS. per pair. Egg Collector's Outfit, containing Drilfs, Blowpipes, and all 

 Eequisites complete, with Book of Instructions, post free, 3s. 3d. Label 

 Lists of every description. Birds and Animals stuffed and mounted in 

 Natural Positions. For particulars see our Catalogue, one hundred pages. 



36, STRAND, LONDON, W.C. 



THE AVICULTURAL MAGAZINE 



Edited by H. D. ASTLEY. 



For the study of Foreign and British Birds in Freedom and in Captivity. 



Monthly. About 32 x>P' of letterpress, with frequent coloured and uncoloured 

 Plates and Text-figures. Price Is. Ad. piost free. 

 Annual Subscription (November to October) 15s., post free, to non-members of 

 the Society. For terms of membership of the Society apply to publishers. 



Cloth, foolscap Qvo. Price 2s. 6^. 



POCKET BOOK of BRITISH BIRD5 



By E. P. M. ELMS. 



" An inexpensive volume, which well deserves to be a 'pocket-book' for those who 

 wish to become field ornithologists." — Zoologist. 



" Contains more information on British Birds in a compact form than any book with 

 which we are acquainted." — The Auk. 



RIRDSNESTING & BIRD=SKINNINQ. A Complete 



■*-^ Description of the Nests and Eggs of Birds which Breed in Britain, 

 by Edward Newman. — Second Edition, with Directions for Collecting and 

 Preservation ; and a Chapter on Bird-sldnning. By Miller Christy. Cloth, 

 foolscap 8vo. Price Is. Postage 2d. 



" Very good indeed, and can be thoroughly recommended." — Athenaum. 



ADLARD & SON and WEST NEWMAN, Bartholomew Close, London, E.C. 



282 pp. Cloth Extra. 6s. &d. Post Feee. 



Aristotle s Researches in Natural Science 



By THOMAS E. LONES, M.A., LL.D., B.Sc. 



With Ilhistrative Draivings. 

 Contents : 



Introductory — Method of Investigation — Celestial, Atmospheric, and 

 Terrestrial Phenomena — Light and Colour, Heat and Sound — Animals, 

 Plants, and Inanimate Matter — Dissections — Homoeomeria — Anhomceo- 

 meria and their functions — Animal Motion — Generation and Develop- 

 ment — Classification of Animals — Anaima, or Animals without Blood— 

 Enaima, or Animals v^ith Blood. 



ADLARD & SON and WEST NEWMAN, Bartholomew Close, London, E.C. 



