DOMINION OF CANADA 

 DEPARTMENT OF AGRICULTURE 



BY 



GEO. H. CLARK, B.S.A. 



AND 



M. OSCAR MALTE, Ph. D. 



WITH WATER COLOUR ILLUSTRATIONS BY 



NORMAN GRIDDLE 



Published by direction of 



The Honourable Martin Burrell, Minister of Agriculture 



Ottawa, 191? 



AVAILABLE AT THE OFFICE OF THE SUPERINTENDENT OF STATIONERY 

 GOVERNMENT PRINTING BUREAU, OTTAWA 



Price, 50 Cents 



