THE OTTAWA NATURALIST 



PUBUSHED BY ThE OtTAWA FiELD-NaTURAUSTS' ClUB 



Ottawa, Omt. 



Harlan I. Smith 

 M. O. Malte 

 M. Y. Williams 



Editor: 



Arthur Gibson. 



Elntomological Branch, Department of 



Agriculture, Ottawa- 



Associate Editors: 

 Anthropology). P. A. Taverner 



Botany. L. M. Lambe 



Geology. R. M. Anderson 



Ornithology. 



Palaeontology. 



Zoology. 



Secretary : 



Clyde L. Patch. 

 Geological Survey. 



Treasurer : 



J. R. Dymond. 

 Department of Agriculture. 



CONTENTS 



Page 



Frontispiece: Photograph of Gannet 



The Gannets of Bonaventure Island. By P. A. Taverner 21 



Notes: Growth on the Somme Battle Field; Check List of N. A. Amphibians and 



Reptiles 26 



On the Remains of a Selachian from the Edmonton Cretaceous of Alberta. By 



L. M. Lambe 27 



Unusual Nesting Material Used by Purple Martins. By Clyde L. Patch 28 



The Economic Value of Batrachians and Reptiles. By Clyde L. Patch 29 



Note on Invertebrates Collected by the Southern Party of the Canadian Arctic Expedition. 



By Frits Johansen 30 



Revision of Some Phacopid Genera. By F. H. McLearn 31 



Instinct Minus Experience. By P. A. Taverner 36 



Brief Notes on the Fauna of Lambton County, Ont. By M. Y. Wilhams 37 



Bohemian Waxwing at Ottawa. By Ralph E. DeLury 38 



Least Bittern Nesting at London, Ont. By W. E. Saunders 38 



Note: Bulletin on Mushrooms of Ontario 38 



THE OTTAWA NATURALIST, established thirty-one years ago, "to publish die 

 results of original research or investigation in all departments of natural history," is issued monthly 

 from September to May, inclusive. All receipts from the publication are invested in the magazine 

 itself. Papers, notes and photographs for publication should be addressed to the Editor. The 

 subscription price is One Dollar a Year. Subscriptions should be addressed to the Treasurer, 

 Mr. J. R. Dymond, Seed Branch, Department of Agriculture, Ottawa. 



