SVS. H 
iCT., 1933 
No. 921 
No. 694 of current Series 
with the assistance as referees in special departments of 
H. B. Booth, F.Z.S. M.B.O.U. Riley Fortune, F.Z.S., F.R.P.S. 
J. M. Brown, B.Sc., F.L.S., F.E.S. Professor A. Gilligan, D.Sc., F.G.S., M.I.M.E, 
W. H. Burrell, F.L.S. F. A. Mason, F.R.M.S. 
Chris. A. Cheetham, F.E.S. Mrs. Elsie M. Morehouse. 
W. J. Fordham, M.R.C.S., L.R.C.P., Thos. Sheppard, M.Sc., F.G.S., F.Z.S. 
D.P.H. T. W. Woodhead, Ph.D.,M.Sc., F.L.S. 
Contents 
Canker in Grass Snakes (illustrated) — Ellen 
Gallwey ....... 
Tardenoisian Sites on Oxenhope Moor (illustrated) 
T. Deans ....... 
Bird Migrations and Movements inside Liverpool 
Eric Hardy ....... 
Field Note ........ 
Yorkshire Naturalists in the Rippon District . 
Maps for Recording the Distribution of Animals, 
Plants, etc., in Britian .... 
217-222 
223-227 
228-230 
230 
230-237 
The Clouded Yellow — C. W . Wright 
Gift to Leeds University 
Reviews and Book Notices 
News from the Magazines . 
Illustrations . . . 217, 
237 
237 
238 
. 238-239 
. 239-240 
19, 220, 221, 222, 225 227 
LONDON : 
A. BROWN & SONS, Ltd., 5 Farringdon Avenue, E.C.4. 
And at Hull. 
Printers and Publishers to the Y.N.U. 
PRICE 1/6 net. 
Prepaid Subscription 
15/ - per annum. 
