OCTOBER-NOVEMBER, 1911 



VOL. XXV, Nos. 7 & 8 



THE 



OTTAWA 

 N ATURA LIST 



Published by The Ottawa Field-Naturalists' Club. 



BOltOV: 



ARTHUR GIBSON, 



Central Experimental Farm, 

 OTTAWA. 



Associate Ottors: 



W. T. Macoun, P. E Raymond, Ph.D. Miss M. F. Fortier, 



Botany. Geology. Ornithology. 



Prof. John Macoun, M. A. Otto Klotz, LL.D. L. M.Lambe, F.G.S., 



Conchology. Meteorology. Palaeontology. 



W. H. Harrington, J. W. Gibson, M.A. Prof. E. E. Prince, 



Entomology. Nature Study. Zoology. 



CONTENTS: 



Fauna Ottawaenis. Order Lepidoptera : Superfamily Geometroidea. 



By Arthur Gibson - 105 



Plants Causing Skin Irritations. By H. T. Gussow ... H2 



Some Canadian Senecios. By J. M. Greenman - 114 



Notes on Native Orchids. By Charles Macnamara, ... 118 



Notes: The Cardinal at Ottawa; A Family of Sharp-shinned 

 Hawks; The White- winged Junco in Manitoba; Hoyt's 

 Horned Lark in Manitoba; Festuca occidentalis in Ontario; 121 

 New Members 123 



Programme of Winter Lectures ------- 124 



** 



The Rolla L. Crain Co., Limited 



ISSUED NOV. 14, 1911. ^/r "*^*'V^A> 



fdntertd at tht Ottawa Post Office a* itoond clam matter. 



