AUGUST 1909. 



No. 631 



(No. 409 of aurnni series). 



A MONTHLY ILLUSTRATED JOURNAL OF 



NATURAL HISTORY FOR THE NORTH OF ENGLAND. 



EDITED BY 



T. SHEPPARD, F.Q.S., F.S.A.Scot., 



The Museum, Hull; 



T. W. WOODHEAD, Ph.D., F.L.S., 



Technical College, Huddersfield. 



with the assistance as referees in special departments op 

 J. QILBBRT BAKER, F.R.S. F.L.S., GEO. T. PORRITT, F.L.S., P.E.S. 



P. F. KENDALL, M.Sc, F.O.S., JOHN W. TAYLOR, 



Prol. 

 T. H. 



NELSON, M.B.O.U., WILLIAM WEST, F.L.S. 



RILEY FORTUNE. F.Z.S. 



Contents : — 



Notes and Comments: — Salmon Scales; A Pre-historic Man Hunt; A Case of Courtesy ; 

 Stone Memorials and Jacob ; Prof. G. S. West 



Dimorphism in the Eggs of Tardus muslcus~{lUustr&ted)—C.J.Patlen,M.A.,M.D.,Sc.D. 



Plants on a Bradford Waste Heap— John Ciycr 



Permian Fossils in the Doncaster District—//. Culpin 



Some British Earthmites — Trombidiidae — (Illustrated)— C. F. Geo^-g-f, il/.i?.C.S 



Northumbrian Coast Spiders — (Illustrated)— iJ^y./. £. //«// 



The Phytoplankton of the English Lake District (Illustrated)— H^m. West, F.L.S.,ami 



G.S. West, M.A.,D.Sc.. F.L.S 287-292 



Some Neolithic Hammer=Heads from East Yorkshire — (Illustrated) — T. Sheppani, 



F.G.S., F.S.A.iScot.) 293-294 



Coraicularla kochli Camb.— A Spider New to Great Britain— With a Key to the British 

 Corniciilariae — Wm. Falconer 



PAGE 



273-274 

 275-277 

 278 

 279-280 

 281-282 

 283-286 



Yorkshire Naturalists at Bowland 



Field Notes 



Reviews and Book Notices 



Northern News 



News from the Magazines 



Illustrations 



Plates XVI,, XVil. 



280, 



295-298 

 299-302 

 294, 303 



286, 304 



278,304 



274, 302 



275, 282, 283, 288, 291 



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