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THE BIRDS OF YORKSHIRE 
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Two volumes. Demy 8vo, 901 pages, including over 200 
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The Scottish Naturalist 
With which is incorporated ‘The Annals of Scottish Natural History’ 
EDITED BY 
PERCY H. GRIMSHAW, F.R.S.E., F.E.S. 
Keeper, Natural History Department, Royal Scottish Museum 
AND 
JAMES RITCHIE, M.A., D.Sc., F.R.S.E. 
Regius Professor of Natural History, University of Aberdeen 
Assisted by:— EVELYN V. BAXTER f.z.s., h.m.b.o.u. ; LEONORA J. RINTOUL, f.z.s., h.m.b.o.u. ; 
H. S. GLADSTONE, m.a., f.r.s.e., f.z.s. ; W. EAGLE CLARKE, i.s.o., ll.d. ; ANDERSON 
FERGUSSON, f.e.s. ; A. C. STEPHEN, b.sc., f.r.s.e. 
Subscriptions should be addressed to the Publishers, 
Messrs. OLIVER & BOYD, LTD., Tweeddale Court, Edinburgh. 
Printed by A. Brown & Sons, Ltd., Perth Street West, Hull, and published by 
A. Brown & Sons, Ltd., at 5 Farringdon Avenue, in the City of London. 
May, 1933. 
