DECEMBER, 1910 



VOL. XXIV, No. 9 



THE 



OTTAWA 

 NATURALIST 



Published by The Ottawa Field-Naturalists' Club. 



BOttOt: 



ARTHUR GIBSON. 

 Cbntral Experimental Farm, 

 OTTAWA. 



?l00ociate ;6Mtord: 



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. Palaontology. 



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



Entomology. Nature Study. Zoology. 



CONTENTS: 



Note on the Parietal Crest of Centrosaurus apertus and a Proposed 

 New Generic Name for Stereocephalus tutus. By Lawrence M. 



Lambe, F.G.S., F.R.S.C. 149 



The Birds of Ottawa. B^rC. W. G. Eifrig 152 



The Migration of Some Native Locusts. By Norman Griddle - 164 



Book Notice - . . 166 



The Entomological Society of Ontario ------ 167 



Note : The Clarke Nutcracker in Manitoba ----- 168 





Copeland-Chatterson-Crain Limited /Vj 



ISSUED DECEMBER 8. 1910. ^ /i?Z,.,.A^^^^^^ 



JSMcrMl at tht Ottawa Poat Office at teeond claM martwf^ j j / . _ ^ . ^ -. I *^ : 



^(LIBRARY 



