CANADA 
DEPARTMENT OF MINES 
Hon. W. A. Gordon, Minister; Charles Camsell, Deputy Minister 
NATIONAL MUSEUM OF CANADA 
W. H. Collins, Acting Director 
BULLETIN No. 68 
Annual Report for 1930 
CONTENTS 
Page 
General Activities of the National Museum of Canada: W. H. Collins.. 1 
The So-called Agropyrm canimm (L.) Beauv. of North America: M. O. Malte 27 
Dinosaur Tracks from Peace River, British Columbia: C. M. Sternberg 59 
A New Subspecies of Willow Ptarmigan from the Arctic Islands of America: P. A. Taverner 87 
A New Hybrid Grouse: P. A. Taverner 89 
OTTAWA 
F. A. ACLAND 
PRINTER TO THE KING’S MOST EXCELLENT MAJESTY 
1932 
