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POCKET BOOK of BRITISH BIRDS 



By E. F. M. ELMS. 



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 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. 



NOW READY. Demy 8vo, Cloth extra, 276 pp., Three Coloured and 

 Eight Uncoloured Plates, with Diagrams in the text. 



VIGOUR AND HEREDITY 



BY 



J. LEWIS BONHOTE, M.A., F.L.S., F.Z.S. 

 Price 10s* 6d. net. 



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