JAN. 1917. 



No. 720 



(No. 496 of current t»ri»s) 



A MONTHLY ILLUSTRATED JOURNAL OF 



NATURAL HISTORY FOR THE NORTH OF ENGLAND. 



T. SHEPPARD, 



EDITED BY 



M.Sc., F.Q.S., F.R.Q.S., F.S.A.Scot.. 



The Museums, Hull ; 



AND 



T. W. WOODHEAD, Ph.D., M.Sc./ F.L.S., 



Technical College, Huddersfield. , 'J 1 1 hi ii 



WITH THE ASSISTANCE AS REFEREES IN SPECIAL DEPARTMENTS OP 



J. OILBBRT BAKER, F.R.S. P.L.S., OEO. T. PORRITT, F.L.S., H.H.S. 



Prof. P. F. KENDALL, M.Sc, P.Q.S.. JOHN W. TAYLOR, M.Sc, 



RILEY FORTUNE, F.Z.S. 



Contents : — 



Notes and Comments (illustrated) :— Taylor's Monograph of Mollusca ; The Vinculum; 

 An Unknown Warbler ; Manchester Microscopists ; Popular Lectures; Leaf Skeletons; 

 The Palaeontographical Society; Protective Shell-Banding, and Natural Selection ; Early 

 Man ; A Reply ; Man and Mr. Moir ; Flints under Ice-Sheets ; A Prehistorian's Geology ; 

 Archaeology and Geology ; The Ipswich Skeleton ; A Signed Report ; The Geological 

 Evidence; How the Young Man Died; Expert Reports ; The Young Man of Ipswich ; 

 Boulder Clay and not Boulder Clay ; Genitalia of Omix ; A Halifax Industry 



On the Occurrence of Manganese in Land and Fresh Water Mollusca— Prof. A . E. 

 Boycott, M.D., F.R.S. , etc 



Yorkshire Naturalists' Union: Vertebrate Section — A. Haigh Lumby 



Yorkshire Naturalists at Selby (illustrated)— W. E.L. W 



In Memoriam :— Charles Crossland — T.S. 



Clement Reid, F.R.S., F.L.S., F.G.S.— T.S 



Sir Ralph Payne-Gallwey, Bart, (illustrated)— R.F 



J. M. Campbell (illustrated)— R.F. 



Yorkshire Naturalists' Union's Report for 1916 



Reviews and Book Notices 



Northern News 



News from the Magazines 



Illustrations ... 1.2, 4, '20, 



Plate 1. 



1-10 



11-is 

 19 

 20-23 

 21-20 

 26-27 

 27-2- 

 29-30 

 33-1* 

 23, 30 

 19, 31 

 32 

 27,29 



LONDON : 



A. Brown & Sons, Limited, 5, Farringdon Avrnuk, EC. 



And at Hull and York. 



Printers and Publishers to the Y.N. U. 



Prepaid Subscription 6/6 per annum, post free. 



