5 GEORGE V. ^ SESSIONAL PAPER No. 39b A. 1915 



SUPPLEMENT 



TO THE 



47th ANNUAL REPORT OF THE DEPARTMENT OF MARINE AND 



FISHERIES, FISHERIES BRANCH 



CONTRIBUTIONS 



TO 



CANADIAN BIOLOGY 



BEING STUDIES FROM THE 



BIOLOGICAL STATIONS OF CANADA 



1911-1914 



FASCICULUS II— FRESH WATER FISH Ax\D LAKE BIOLOGY 



THE BIOLOGICAL BOARD OF CANADA 



Professor E. E. Prince, Commissioner of Fisheries, Chairman. 



Professor A. B. Macallum, University of Toronto, Secretary-Treasurer. 



Professor L. W. Bailey, University of New Brunswick, Fredericton, N.B. 



Professor A. H. R. Bttller, University of Manitoba, Winnipeg. 



Rev. Abbe V. A. Huard, Laval University, Museum of Public Instruction, Quebec, P. Q. 



Professor A. P. Knight, Queen's University, Kingston, Ont. 



Professor J. P. McMurrich, University of Toronto, Toronto. 



Dr. A. H. MacKay, Dalhousie University, Halifax, N.S. 



Professor A. Willey, McGill University, Montreal. 



OTTAWA 



PRINTED BY J. BE L. TACHE, PRINTER TO THE KING'S MOST 



EXCELLENT MAJESTY 



1915 



[No. 396—1915] 



