A MONTHJpP* IM 
ILLU STRATEDtJ OURNAL ' \ 
PRINCIPALLY FOR THE OF^^jyV^ 1933 ^ 
D5 • H 
SEPT., 1933 
No. 920 
No. 693 of current Series 
PRINCIPALLY FOR THE 
Edited 
W. H. PEARSALL, D.Sc., FX.S^.W. R. G 
The University, Loiea9.NAL MVJ 
.Sc., 
with the assistance as referees in special departments of 
H. B. Booth, F.Z.S. M.B.O.U. 
J. M. Brown, B.Sc., F.L.S., F.E.S. 
W. H. Burrell, F.L.S. 
Chris. A. Cheetham, F.E.S. 
W. J. Fordham, M.R.C.S., L.R.C.P., 
D.P.H. 
Riley Fortune, F.Z.S. , F.R.P.S. 
Professor A. Gilligan, D.Sc., F.G.S., M.I.M.E. 
F. A. Mason, F.R.M.S. 
Mrs. Elsie M. Morehouse. 
Thos. Sheppard, M.Sc., F.G.S., F.Z.S. 
T. W. Woodhead, Ph.D.,M.Sc., F.L.S. 
Contents 
Observations on the Peculiar Growth Habit and 
the Anatomy of Dog’s Mercury ( illustrated ) — 
N . Gill 
An Additional Record of Gapria Nigra Piete 
(Plecoptera) — G. A. Nelson, W. D. Hincks. 
Flight of Insects — W.H.P. .... 
Scutellaria Minor L. in Lunedale — Chris A 
Cheetham. . . . . . . 
The Palseobotany of Robin Hood Quarry, Leeds 
( illustrated ) — James Walton. B.Sc. 
The Spread of Birch since the War — Harold J 
Bur kill, M.A., F.R.G.S 
On the Soaring Flight of the Chough {illustrated)— 
Stuart Smith, B.Sc. {Leeds). 
Some Notes on the Holocene Deposits at North 
Ferriby {illustrated) — C. W. and E. V. Wright 
Review and Book Notice .... 
From A Microscopist’s Note Book — W. Lawrence 
Schroeder ....... 
In Memoriam — Henry Lodged — Charles Mosley . 
Yorkshire Naturalists at Ripponden {illustrated)- 
F. A. Mason, F.R.M.S 
News from the Magazines .... 
Illustrations 
195, 201, 207, 208, 210, 
193-199 
199 
200 
201-205 
205-206 
207-209 
210-212 
212 
213-214 
214 
215-216 
209, 214 
211, 215 
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. 
