FEB. 1921. 



No. 769 



No. 543 of current Series 



A MONTHLY ILLUSTRATED JOURNAL OF 



NATURAL HISTORY FOR THE NORTH OF ENGLAND. 



EDITED BY 



T. SHEPPARD, M.Sc, F.G.S., F.R.G.S., F.S.A.Scot., 



The Museums, Hull; 



T. W. WOODHEAD, Ph.D., M.Sc^MPitF.'S^S^ 



Technical College, Huddersfield'', 

 WITH THE ASSISTANCE AS REFEREES IN SPECIAL cSiCQritSEjrralQIM 



G. T. PORRITT, F.L.S., F.E.S. ^ 



JOHN W. TAYLOR, M.Sc. 



RILEY FORTUNE, F.Z.S^^ 



Contents s- 



Notes and Comments (illustrated) :—The Edinburgh Review ; Perfect 

 Females ; Kingmoor Nature Reserve ; Still Reserved ; Removing 

 a Reef -knoll ; An Excursion ; Fenland Silt ; Liverpool Geologists 

 Type Ammonites ; Paratypes and Phaulomorphs ; Mr. G. W, 

 Laraplugh, F.R.S. ... 



The Rigidity of North-west Yorkshire (illustrated) — /. E. Marr, 

 Sc.D., F.R.S 



Pine Marten in Wharfedale — R. Fortune, F.Z.S. ... 



Geaster rufescens Pers. in Yorkshire — F. A. Mason, F.R.M.S. 



Field Notes (illustrated) : — Senecio aquaticus at Beverley : a correction 

 Abundance of Winter Moths in Yorkshire ; Robin removing Young 

 from Danger ; Unusual capture of a big Yorkshire Salmon ; Sturgeon 

 at Scarborough ; Remains of Elephas in East Yorkshire ; Coast 

 Erosion in Holdemess ; Late Breeding of Hedgehog in Holderness ; 

 Hedgehog in a Strange Locality ; Habits of Water Vole in Suffolk ; 

 Late Stay of Swift ; Black Redstart at Whitby ; Late Willow Warbler 

 at Bolton Abbey ; Swallow near Whitby in December ; Gannet with 

 Abnormal Eyes ; Great Northern Diver at Castleton in Cleveland ; 

 Little Auk at Barmby Moor, near Pocklington ; Behaviour of Hobby 

 in Kent ; Golden Eagle in Lincolnshire ; Golden Eagle in West 

 Yorkshire ; Early Mollusca at Selby ; Early Mollusca in Lincolnshire ; 

 Lincolnshire Land and Freshwater Mollusca ; Early Mollusca in York- 

 shire and Lines. ; Helix [Acanthinula) laniellata Jeffreys var. albina 

 nov. var. ; Phibalapteryx lapidata in Yorkshire ; Mochlonvx velutinus 

 Ruthe in Yorkshire ; Lancashire and Cheshire Entomology 62, 72, 



The Spiders of Yorkshire — Wni. Falconer, F.E.S. 



Reviews and Book Notices 



News from the Magazines ... 



Northern News 



Illustrations 



57-62 



63-72 



73 



74-75 



60, 



76-83 

 84-86 

 76 

 87 

 72, 88 

 66, 77 



LONDON : 



A. Brown & Sons, Limited, 5 Farringdon Avenue, E.C. 4. 

 And at Hull and York. 



Printers and Publishers to the Y.N.U. 



Price 1/- net. Prepaid Subscription 10/6 per annum. 



