Annual report of the Bureau of Mines.
Ontario.Bureau of Mines.
Toronto : The Bureau,
1907-1919.
Vols. for 1914-1919 have title: Annual report of the Ontario Bureau of Mines.
Some issues have title: Report of the Bureau of Mines.
Pt. 2 of the reports has also a distinctive title.
Issued in pts.
Reports cover the year previous to that printed on the title page (i.e. 16th (1907) is the report for 1906).
1st (1891)-25th (1916).  1 v. (includes index to the earlier title); 26th (1917)-35th (1927).  1 v. (includes index to the later title)
Ontario. Bureau of Mines
Mines and mineral resources
Report of the Bureau of Mines
Annual report of the Ontario Department of Mines