OCTOBER, 1910 



VOL. XXIV, No. 7 



THE 



OTTAWA 

 NATURALIST 



Published by The Ottawa Field-Naturalists' Club 



i 



BOitot: mj 



ARTHUR GIBSON, : SK { ^ * "" '^ ^ R V>1 



Central Experimental Farm, "^ 



OTTAWA. '^ 



Hssoctate EDitors; <;# ' 



W. T. Macoun, W. J. Wilson, Ph.B. Rev, G. Eifrig, 



Botany. Geology. Ornithology. 



Rev. G.W. Taylor, M.A. Alex. McNeill, 1 L. M.Lambe, F.G.S., 



Conchology. Meteorology. Palaeontology. 



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



Entomology. Natiire Study. Zoology. 



CONTENTS: 



Plant Physiology versus Pyschology. By H. T. Gussow - 113 

 Bird Migration in Northern British Columbia. By Rev. J. H. 



Keen - - . .- - - - - 116 



Excursion to Green's Creek - - - . _ 118 



Report of the Entomological Branch, 1909 _ - - 119 

 Notes on the Flora of the Nerepis Marsh, New Brunswick. By 



A. B. Klugh 121 



A Record Catch. By Captain L. H. Sitwell. - - - 122 



Animal Instinct, By R. C. Treherne - - - - 124 



Preliminary List of the Crataegi of the Ottawa District. By 



Herbert Groh - - . - - - - 126 



Note : Plants Injured by Creosote, _ . - - 128 



Copeland-Chatterson-Crain Limited 



ISSUED OCTOBER IS. 1910. 



Bntertd at the OttavM Poat Office as seeond olae* matter. 



