THE 



NATURALIST: 



A 

 MONTHLY JOURNAL OF 



NATURAL HISTORY FOR THE NORTH OF ENGLAND 



EDITED BY 



THOMAS SHEPPARD, F.G.S., F.S.A. Scot. 



Curator of the Municii'al Museums, Hull. 



Past President of the Hlll Scientific and Field Naturalists' Club, of the Hull 



Geological Societv ; Hon. Secretary of the Yorkshire Naturalists' 



Union; Hon. Life Member of the Spalding Gentlemen's Society; of 



the Doncaster Scientific Society; etc. 



AND 



THOMAS WILLIAM WOODHEAD, Ph.D., F. L. S. 



Lecturer in Biology, Technical College, Huddersiield ; 



WITH THE assistance AS REFEREES IN SPECIAL DEPARTMENTS OF 



J. GILBERT BAKER, F.R.S., F.L.S. GEORGE T. PORRITT, F.L.S., F.E.S. 



Prof. PERCY F. KENDALL, M.Sc, F.G.S. JOHN W. TAYLOR. 



T. H NELSON. M.H.O.U. WILLIAM WEST, F.L.S. 



RILEY FORTUNE, F.Z.S. 



1909. 



U 



oooci 



LONDON : 



A. Brown & Sons, Ltd., 5, Farringdon Avenup:, E.C 



And AT Hull and York. 



