SCIENCE.— AD VERTISE3IENTS. 



BIRDS 



By A. H. EVANS, M.A. 



Clare College, Camhridge 



Being Volume IX of the Cambridge Natural History. Edited by S. F. Harmeb, Sc.D., 



and A. E. Shipley. With Numerous Illustrations. 



Clotll Sto, $3.50 net. 



A short description of the majority of the forms in many of the Families, and of the most typical or impor- 

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 fossil forms as yet recorded. 



"The greatest and best book ever written about birds." — Elliott Coues. 



A DICTIONARY OF BIRDS 



By Professor Alfred Newton, University of Cambridge. 



Assisted by Hans F. Gadow, Ph.D., F.R.S. With contributions from Richaed Ltdekker, author (with Sir W. 

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 versity of Cambridge ; Robert W. Shofeldt, Late U. S. Army, Author of " The Mythology of the Raven," etc. 



Complete in One Tolume. 9Ied. Sto, Price $10 net. 



"It is a better introduction to ornithology and to ornithologists than has ever been written before . 

 indeed it is one to lie upon the desk of every worker in this branch of natural history as an almost inexhaustible 

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"The most valuable and most interesting contribution ever made to the subject of which it treats."— Science. 



BIRDCRAFT 



A Field Book of Two Hundred " The Book is attractive, interesting, lielpful, and 



„ „ , .„., , •* . , should be in the library of every lover of birds." 



Song, Game, and Water Birds, —science. 



By Mabel Osgooi) Wright. 



Eighty Plates by Lonis Agassiz Fcertes. Small Quarto, $2.50 net. 



CITIZEN BIRD 



Scenes from Bird Life in " one of the most charming as well as most 



Plain English for Beginners. useful books."-FoKEST and stkeam. 



By Mabel Osgood Wright, Author of " Tommy-Anne" etc., and Dr. Elliott Coues, Author of " Birds of North 

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