JUNE, 1910 



VOL. XXIV, No. 3 



TH E 



OTTAWA 

 N ATURA LIST 



Published by The Ottawa Field-Naturalists' Club. 



JCditot: 



ARTHUR GIBSON, 



Central Experimental Farm, 



OTTAWA. 



Tlaeociate lEDitotd: 

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



Botany. Geology. Ornithology. 



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



Conchology. Meteorology Palceontology. 



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



Entomology. Nature Study. Zoology. 



CONTENTS: 



Plants Growing Wild and Without Cultivation in the County of 



Lambton, Ontario. By Charles K. Dodge. - - - - 45 



Canadian Species of Thalictrum. IV. By Edward L. Greene. - 62 



Birds observed at Sherbrooke, Que. Spring Migration, 1909. By 



R. G. Price. ---------- 55 



Svalof Seed Farm. By Geo. H. Clark. ----- 57 



Nature Study : A Weasel's Home. By S. E. Percival. - - 59 



Excursions : Britannia, April 23rd ; Billings' Bridge, April 30th. - 60 



Book Review : Birds of New York ; Catalogue of Neartic Spiders. 62 



Notes : Another case of Natural Grafting ; Distribution of Miscel- 

 laneous Publications. -------- 



Copkland-Chatterson-Crain Limited '%> i^P A ^^ 



L . /* -^^^^ \A tP 



ISSUED JUNE 8, 1910. 1**^ f i - ^ \ ^^ 



EnUrad at th* OUavnx Poat Offle* as teeond claet matter.\^L I i ^ 



