DOMINION OF CANADA 



DEPARTMENT OF AGRICULTURE 

 ENTOMOLOGICAL BRANCH 



C. GORDON HEWITT, DOMINION ENTOMOLOGIST 



B 3 bMfi 240 



CANADIAN BARK-BEETLES 



PART II 



A PRELIMINARY CLASSIFICATION, WITH AN ACCOUNT 

 OF THE HABITS AND MEANS OF CONTROL 



BY 



J. M. 'SWAINE, 



Assistant Entomologist in Charge of Forest Insect Investigations 



BULLETIN No. 14 



(Technical Bulletin} 



Published by direction of the Hon. T. A. Crerar, Minister of Agriculture, Ottawa 



OTTAWA 



J. DE LABROQUERIE TACHE 

 PRINTER TO THE KING'S MOST EXCELLENT MAJESTY 



1918 



ISSUED SEPT. 6, 1918. 



