THE OTTAWA FIELD-NATURALISTS' CLUB 



President: M. Y. WiLUAMS 

 Vice-Presidents: L. D. BuRUNG; P. A. Taverner 



Secretary^ : 

 Clyde L. Patch 



(Geological Survey) 



Treasurer: 



Miss E. B. Cramp 



(Research Station, 



Dept. Agriculture, 



Hull, Que.) 



Additional Members of Council: HoYES Lloyd; W. T. Macoun; G. A. Miller; R. 

 M. Anderson; Miss M. E. Cowan; C. B. Hutchings; C. M. Sternberg; H. I. 

 Smith; H. McGillivray; F. W. Waugh. 



THE CANADIAN FIELD-NATURALIST 



E. Sapir 



M. O. Malte 



F. R. Latchford 

 M. Y. Williams 



Editor : 



Arthur Gibson, 



Entomological Branch, Department of 



Agriculture, Ottawa. 



Associate Editors: 

 Anthropology A. G. Huntsman 



Botan}f P. A. Taverner 



Conchology E. M. Kindle 



Geology R. M. Anderson 



Marine Biology. 



Ornithology 



Palaeontology 



Zoology 



CONTENTS. 



Lake Shore Bird Migration at Beamsville, Ont. By Hamilton M. Laing 21 



The Flora of Warrens Landing, Lake Winnipeg, Man. By Chas. W. Lowe 26 



Canadian Sphaeriidae. By The Hon. Mr. Justice Latchford 30 



Belated Guests. By Frank Morris 34 



Notes and Observations: 



Migratory Birds Convention Act Prosecutions 36 



The Absence of Song Birds in the Wilderness of Nova Scotia. H. A. P. Smith. 36 



Book Notices and Reviews: 



Lead Poisoning in Waterfowl, by A. Wetmore. P. A. Taverner 37 



Annotated Check List of the Macrolepidoptera of Alberta, by K. Bowman. 



Arthur Gibson 37 



Programme of Outings, 1920 38 



Obituary: 



James Melville Macoun. By M. O. Malte 38 



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

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

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

 August. 



Papers, notes and photograi>hs should be addressed to the Editor. Manuscript should be 

 typewritten. 



Subscriptions should be sent to the Treasurer, Miss E. B. Cramp, Research Station, 

 Department of Agriculture, Hull, Que. The price of this volume is $1.50; single copies, 20 cents. 



