MAY, 1913 



VOL. XXVII, No. 2 



THE 



OTTAWA 

 N ATURA LIST 



Published by The Ottawa Field-Naturalists' Club. 



Harlan I. Smith, 



Anthropology. 

 M. O. Malte, Ph. D. 

 Botany. 



Prof. John Macoun.M.A. 

 Conchology 



JEoftOt: 



ARTHUR GIBSON, 



Central Experimental Farm, 



OTTAWA. 



Hssociate Bottow: 



W. H. Harrington, 

 Entomology. 



H. M. Ami, D.Sc. 



Geology. 



Otto Klotz, LL.D. 



Meteorology. 



P. A. Taverner, 



Ornithology. 

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



Palttontology. 



C. Gordon Hewitt, D.Sc, 

 Zoology 



CONTENTS: 



The Manus in a Specimen of Trachodon from the Edmonton 



Formation of Alberta. By Lawrence M. Lambe. 21 



A Further Note on Cryptolithus Versus Trinucleus. By Percy E. 



Raymond. - - - - - - - -"- 26 



Zapus Princips Minor. -_---___ 30 



The Shade Trees of Ottawa. ------- 31 



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The Rolla L. Crain Co., Limited AN/oP 11 'f^V -^ 



ISSUED MAY 17, 1913. /^ fit ?<**>+** VV ^ 



Entered at Ottawa Post Office as second class r.atfr I L I 8 R A F 



