MAY 1910. 



No. 640 



(No. 478 0/ eurrtnt ttriti). 



A MONTHLY ILLUSTRATED JOURNAL OF 



NATURAL HISTORY FOR THE NORTH OF ENGLAND. 



EDITED BV 



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



The Museums, Hull ; 



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



Technical College, Huddersfield. 



WITH the assistance AS REFEREES IN SPECIAL DEPARTMENTS OP 



J. GILBERT BAKER. F.R.S. P.L.S., GEO. T. PORRITF, F.L.S., F.E.S. 



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



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



RILEY FORTUNE, F.Z.S. 



Notes and Comments 1 



British Mineral 



Contents : — 



-The Ravenscliff Cave ; Plebeius argus var. Masscyi Tutt ; A New 



185-186 



Man as an Instrument of Research — G. W. Lamplugh, F.R.S., F.G.S. 



Abnormality in Spiders (Illustrated) — Win. Falconer 



Some Avicultural Notes— TK. H. St. QuintinJ.P., F.Z.S. , etc. 



In Memoriam : Cliarles Fox-Strangways, F.Q.S. (Illustrated)— r. S. 



Field Notes 



Northern News 



Proceedings of Provincial Scientific Societies 



Reviews and Book Notices 



Illustrations 



199-203 

 201-209 

 210-214 



LONDON : 



A. Hkown & Sons, Limited, 5, Farringdon Avenue, E.G. 



And at Hull and York. 



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PRICE 6d. NET. BY POST 7d. NET. 



