A MONTHLY ILLUSTRATED JOURNAL OF 
NATURAL HISTORY FOR THE NORTH OF ENGLAND. 
EDITED BY 
T. SHEPPARD, F.Q.S., F.R.Q.S., F.S.A.Scot., 
The Museums, Hull ; 
AND 
T. W. WOODHEAD, Ph.D., F.L.S., 
Technical College, Huddersfield. 
WITH THE ASSISTANCE AS REFEREES IN SPECIAL DEPARTMENTS OF 
J. GILBERT BAKER, F.R.S. P.L.S., GEO. T. PORRITT, F.L.S., P.E.S 
Prof. P. F. KENDALL, M.Sc., F.O.S., JOHN W. TAYLOR, 
T. H. NELSON, M.B.O.U., WILLIAM WEST, F.L.S., 
RILEY FORTUNE, F.Z.S. 
Contents : — 
Notes and Comments: — Sporida of Puccina Malvacearum : Drawings of Fungi; The 
Palaeontographical Society ; Museum Regulations ; Punch and Natural History 169-170 
Movements of Aquatic Micro-Organisms in response to External Forces 
(Illustrated)— Harold Wager, F.R.S 171-178 
Yorkshire Naturalists at Knaresborough (Illustrated)— W.E.L. W 179-188 
Orchis praetermlssa Druce— G. Claridge Druce 189-192 
Field Notes: — Early Arrival of Swifts at Harrogate; Great-Spotted Woodpecker ejecting 
Blue-Tit ; York Bird Notes ; PleiygopHyllutn lucens Bird., in West Lancs., and a correction ; 
Holaster planus in the Hessle Chalk ; Record of a Sunfish in the Humber in 1815 188, 192 
Bibliography : — Papers and Records relating to the Geology and Palaeontology of the North 
of England (Yorkshire excepted), published during 1913 — T. Sheppard, F.G.S 193-199 
Northern News 199 
News from the Magazines ... ... 200 
Illustrations 173,175,178 
Plates XVII. , XVIII. 
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