DECEMBER, 1911 



THE 



VOL. XXV, No. 9 



OTTAWA 

 NATURALIST 



Published by The Ottawa Field-Naturalists' Club. 



JBoitot: 



ARTHUR GIBSON, 



Central Experimental Farm. 



OTTAWA. 



associate JEDltors: 



P. E. Raymond, Ph.D. 

 Botany. Geology. 



Prof. John Macoun,M.A. Otto Klotz, LL.D. 



Conchology. Meteorology. 



W. H. Harrington, J. W. Gibson, M.A. 



Entomology. Nature Study. 



W. T. Macoun, 



Miss M. F. Fortier, 



Ornithology. 



L. M.Lambe, F.G.S., 



Palaontology. 



Prof. E. E. Prince, 



Zoology. 



CONTENTS: 



Popular and Practical Ornithology. By Norman Criddle - - 125 



Abundance of the Cotton Moth in Ontario. By Arthur Gibson - 129 



The Nature of Parasitic Fungi and their Influence upon the 



Host Plant. By H. T. Gussow - - 130 



The Entomological Society of Ontario. ------ 137 



Lecture on Landscape Gardening ------- 123 



Book Notices ---------- 140 



The Rolla L. Crain Co., Limited /v^3 -^^ x\ 



ISSUED DEC. 16, 1911. /s~ /t&P^ ^K "^J* 



fdnisrsd at the Ottawa Poet Office as second clatrt -mattf* -. ( 



Zi 



VA ****** / / 



