APRIL 1921. 



No. 771 



No. 545 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 ; 



AND 



T. W. WOODHEAD, Ph.D., M.Sc 



Technical College, Huddersfield, 

 WITH THE ASSISTANCE AS REFEREES IN SPECIAL 



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

 JOHN W. TAYLOR, M.Sc. RILEY 



Contents :— 



Notes and Comments (illustrated) : — Early Ornithology ; Mediceva 

 Birds ; A Bronze-Age Hawk ; Oil Waste and Marine Life ; Know 

 Your Faults ; Reversed Faults ; Overthrusts ; The Scarborough 

 Museum ; The Museums Journal ; Dr. W. Eagle Clarke ; Vegetation 

 of English Lakes ; Geologists and Intelligence 



New and Rare Yorkshire Lepidoptera — /. Ashton Lofihouse, F.E.S. 



The Swarming of Gollembola — James Meikle Brown, B.Sc, F.L.S. 



The Physiography of North Britain in Millstone Grit Times — 

 W. S. Bisat 



Further Observations on the Occurrence of Manganese in Land 

 and Fresh -water Mollusca — A. E. Boycott 



Yorkshire Goleopterain 1920 — W . J. Fordham, M.R.C.S., L.R.C.P. 



Yorkshire Zoology — Wilfred Taylor 



In Memoriam : H. H. Gorbett (illustrated) — E.G.B.... 



Field Notes : — Hen Harrier at East Cottingwith ; Scheuzeria palustris 

 L. in Thorne Moors ; Large Grass Snakes at Harrogate and Ripon ; 

 Bottle-nosed Dolphin in Norfolk ; Rose-coloured Starlings in 

 Holderness ; Northern Zoological Notes ; Waxwings at Hebden 



I2i-i2r> 



127-128 

 129-130 



131-134 



135-138 



139-143 



144 



145-149 



Bridge ; Waxwings near Scarborough . . 

 Correspondence : — Quoting References ; 



Lancashire and Cheshire Entomology 



Book Notice ... 



News from the Magazines 

 Northern News 

 Illustrations ... 



Sparrows 



... 128, 134, 143, 144, 149 

 and Crocuses ; 



150 



150 



151 



... 130, 132 



121, 122, 145 



LONDON : 

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



And at Hull and York. 

 Printers ayid Publishers to the Y.N.U. 



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



