by Canada. Parliament. Senate

1921

by Engineering Institute of Canada

1921

by Canada. Dominion Water and Power Bureau

1925

by Canada. Department of Agriculture. Experimental Farms

1914

by Canada. Water Resources Division

1927

by Canada. Experimental Farms

1914

by Canada. Experimental Farms Service

1914

by Canada. Experimental Farms Service

1914

by Canada. Dominion Experimental Farms

1914

by Canada. Fuel Board

1923

by Canada. Fuel Board

1923

by Canada. Fuel Board

1923