THE OHAWA FIELD-NATURALISTS' CLUB 



President: M. Y. Williams 

 Vice-Presidents: L. D. BuRUNG; R. M. Anderson 



Treasurer: 

 Secretarjf: q. B. Hutchings 



Clyde L. Patch (Entomological Branch 



(Geological Survey) Dept. Agriculture.) 



Additional Members of Council: HOYES Lloyd; W. T. Macoun; G. A. MiLLER; MiSS M. 

 E. Cowan; C. B. Hutchings; C. M. Sternberg; H. I. Smith; F. W. Waugh; 

 P. A. Taverner; E. Sapir; E. M. Kindle; W. J. Wintemberg; R. E, Delury; 



F. Johansen. 



THE CANADIAN FIELD-NATURALIST 



Editor : 



Arthur Gibson, 



Entomological Branch, Department of 



Agriculture, Ottawa, 



Associate Editors: 



E. Sapir - - Anthropology) A. G. Huntsman - Marine Biology. 

 M. O. Malte - - Botany P. A. Taverner - - - Ornithology 



F. R. Latchford - Conchology E. M. Kindle - - - Palaeontology 

 M. Y. Williams - - Geology R. M, Anderson . . . . Zoology 



CONTENTS. 



The Vertebrates of the Otter Lake Region, Dorset, Ont. By A. H. Wright and S. E. R. 



Simpson 141 



The Larger Freshwater-Crustacea from Canada and Alaska. By Frits Johansen 145 



Argulidae from the Shubenacadia River, N.S. By C. B. Wilson 149 



Birds in Relation to Insect Control. By Norman Criddle 151 



Additions to the Birds of Shoal Lake, Man. By E. S. Norman 154 



The Duck specimens recorded as Labrador Ducks in Dalhousie College, Halifax, N. S. 



By Hoyes Lloyd. 155 



Notes and Observations: 



The Prothonotary Warbler at London. W. E. Saunders 156 



Epicurean Taste in Swallows. W. E.Saunders 156 



Prosecutions Migratory Birds Convention Act and Northwest Game Act 157 



Bird Banding Work in United States. E. W. Nelson 158 



Migration Studies by Bird Banding. P. A. Taverner 158 



The Jaeger at Sylvan Lake, Alta. E. Cassels 159 



Book Notice: 



Taverner's Birds of Eastern Canada. W. E. Saunders 160 



THE CANADIAN FIELD-NATURALIST, lately The Ottawa Naturalist, estab- 

 lished thirty-two years ago, "to publish the results of original research or investigation in all 

 lepartment8 of natural history," is issued monthly, excepting for the months of June, July and 

 August. 



Papers, notes and photographs should be addressed to the Editor. Manuscript should be 

 tjrpewritten. 



Subscriptions should be sent to the Treasurer, Mr. C. B. Hutchings, Entomological Branch, 

 Department of Agriculture, Ottawa. The price of this volume is $1.50; singe copies, 20 cents. 



