P[reliminary] r[eport]
Place of publication: Quebec
Language: eng
Subjects: Mines and mineral resources
Notes: Some numbers issued in revised editions.

Reports issued by the Geological Surveys Branch (called earlier Division of Geological Surveys and Geological Division) or by the Mineral Deposits Branch (called earlier Division of Mineral Deposits) of the Bureau of Mines, 1939-41; of the Dept. of Mines, 1942-60, or by the Laboratories Branch of the Dept. of Mines, 1949-.