CANADA 
DEPARTMENT OF MINES 
Hon. W. A. Gordon, Minister; Charles Camsell, Deputy Minister 
NATIONAL MUSEUM OF CANADA 
W. H. Collins, Acting Director 
BULLETIN No. 67 
Annual Report for 1929 
CONTENTS 
' Pag* 
General Activities of the National Museum of Canada: W. H. Colons 
A Study of Branta canadensis (LinnaouB): P. A. Taverner 28 
Freshwater Mollusca from Central Ontario: F. C. Baker and A. R. Cahn. 41 
Distinguishing Characteristics of Algonkian and Irocjuoian Cultures: W. J. Wintemrebq -65 
Technical Methods in the Preservation of Anthropological Museum Specimens: D. Lkbchman. . ....... 127 
’ ,y- y - J: V . - ^ 
OTTAWA 
F. A. ACLAND 
PRINTER TO THE KING’S MOST EXCELLENT MAJESTY 
1231 
