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 Drills, Blowpipes, and all 

 Kequisites 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. 



CHAMBERLAIN & COMPANY, 



NATURAL HISTORY 



BOOK MERCHANTS, 



Sheepscombe, Stroud, Gloucester, 



Supply Books on Ornithology, Conehology, Entomology, 

 Botany, Microscopy, Geology, etc. 



CATALOGUES, ALL BRANCHES, GRATIS. 



Cloth, foolscap 8vo. Price 2s. 6d. 



POCKET BOOK of BRITISH BIRDS 



By E. F. 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. 



RIRDSNESTINQ & BIRD=SKINNING. 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-skinning. By Miller Christy. Cloth, 

 foolscap 8vo. Price Is. Postage 2d. 



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



ADLARD & SON and WEST NEWMAN, Bartholomew Close, London, EX. 



282 pp. Cloth Extra. 6s. 6d. Post Free. 



Aristotle s Researches in Natural Science 



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



With Illustrative Drawings. 

 Contents : 



Introductory — Method of Investigation — Celestial, Atmospheric, and 

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

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

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

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

 Enaima, or Animals with Blood. 



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



