NOVEMBER. 1915 



VOL. XXIX, No. 8 



THE 



OTT AW A 

 NATURALIST 



Published by The Ottawa Field-Naturalists' Club 



BDltor: 



ARTHUR GIBSON, 



Entomological Branch, Department of Agriculture, 

 OTTAWA. 



?l0doctate JEditocs: 



Harlan I. Smith, W. H. Harrington, P. A. Taverner, 



Anthropology. Entomology. Ornithology. 



M. O. Malte, Ph. D. H. M. Ami, D.Sc. L. M. Lambe, F.G.S., 



Botany. Geology. Palaeontology. 



Prof. John Macoun, M.A. Otto Klotz, LL.D. C. Gordon Hewitt, D.Sc. 



Conchology. Meteorology. Zoology. 



CONTENTS: 



A New Ordovician Pelecypod from the Ottawa District. By Alice 



E. Wilson 85 



Shallow Water Deposition in the Cambrian of the Canadian 



Cordillera. By Lancaster D. Burling - - - - 87 



Notes on the Herring Gull. By M. Y. Williams - - - 89 



The Evolution of the Sheep. By B. C. Tillett _ - . 90 



Bequest to O.F.N.C. 93 



Some Habits of Swainson's Hawk in Manitoba. By Norman Griddle 94 



Fifty-Second Annual Meeting of the Entomological Society of 



Ontario -- 97 



The Canadian Fisheries Museum ______ 99 



Programme of Winter Lectures __-__- 100 



<^^/ 



The Rolla L. Grain Co., Limited *>^/^^^ '^fX.'^ 



issued NOV. 30, 1915 ^/^ ^*'f^ ^ ^\ 



Entered at Ottawa Post Office as second class matter. » iLIBKAKT 





