WATKINS & DONCASTER 
NATURALISTS, 
36. STRAND. LONDON. W.C.2 
(Five Doors from Charing Cross), 
Keep in stock every description of 
APPARATUS, CABINETS, BOOKS, AND SPECIMENS 
for Collectors of 
BIRDS’ EGGS, BUTTERFLIES, MOTHS, ETC. 
Catalogue (96 pages) sent post free on application. 
FOR 
PRINTING 
With something “ bookish ” about it 
WRITE TO 
A. BROWN & SONS, LIMITED 
40 George Street Hull 
Telephone: Central 605 Telegrams: “Brown, Hull” 
The Birds of Yorkshire 
By T. H. NELSON, M.B.O.U., 
With the co-operation of W. Eagle Clarke, F.R.S.E., and F. Boyes. 
Two volumes. Demy 8vo, 901 pages, including over 200 
Illustrations, beautifully printed in double tone ink, from 
photographs by R. Fortune, F.G.S., and other well-known 
naturalist photographers, also three-colour plates, including 
specially designed title pages. Cloth Boards, 17/6 net, post 
free, 18/9. 
London : A. BROWN & SONS, Ltd., 5 Farringdon Avenue, E.C.4 
AND AT HULL AND YORK 
