JULY, 1933 
No. 918 
No. 691 of current Series 
A MONTHL’ 
ILLUSTRATED 
PRINCIPALLY FOR THE NC 
DH OF ENGLAND y 
Edited\ 
W. H. PEARSALL, D.Sc., F.L. 
The Universif 
an 
j'W: v m 
with the assistance as refe rees^fy*-^£erm / de 
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., F.E.S. 
ts of 
Riley Fortune, F.Z.S. , F.R.P.S. 
Professor A. GiJligan, D.Sc., F.G.S.,M. 
F. A. Mason, F.R.M.S. 
Mrs. Elsie M. Morehouse. 
Thos. Sheppard, M.Sc., F.G.S. 
T. W. Woodhead, Ph.D.,M.Sc., F.L.S. 
.M.E. 
Contents 
Editorial — Retirement of Professor Garstang ; Dr. 
Frank Elgee ; Dr. J. Grainger. 
Two Yorkshire Wasps : Chrysis Ruddii Thuck and 
Psammochares approximatus Sm.— A. E. Bradley. 
Boltoniana — F. A. Mason, F.R.M.S. 
A possible function of the Hairs in certain Lepido- 
pterous Larvae- — Geo. B. Walsh, B.Sc. . 
Some Economic aspects of the Virus Diseases 
in Potatoes — John Grainger, Ph.D. 
From a Microscopist’s Note-Book — W. Fawrence 
Schroeder. ....... 
Additional Records of Coleoptera from the King- 
moor (Cumberland) Nature Reserve — 
F. H. Day, F.E.S 
Triogma Trisulcata, Schum., and other Yorkshire 
Diptera — Chris. A. Cheetham 
Northern News ....... 
Giant Squid (new to Science) at Scarborough — 
(■ illustrated ) — W. J. Clarke. . 
In Memoriam — Herbert Knight Horsfield—R.F . 
Walter John Gyngell ( portrait ) — W. 
J. Clarke, E. Arnold Wallis 
Field Notes ...... 146, 153, 
Yorkshire Naturalists at Skipwith . 
147 - 
149 - 
145 
146 
148 
150 
153 
154 
155-156 
157 
158 
150 
156 
-158 
-159 
Reviews and Book Notices 
News from the Magazines 
Illustrations . 
161 
163 
166 
154, 166-167 
168 
157, 160, 164 
159 - 
161- 
164- 
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