At head of title, no.1, 1928: State of Montana. M. A. Brannon, chancellor, the University of Montana. State bureau of mines and metallurgy. Francis A. Thomson, director.--no.1, 1929- State of Montana. Bureau of mines and geology. Mimeographed, no.1, 1928- No. 61- cataloged separately with call no. QE133.M46. For catalog access see series: Memoir (Montana Bureau of Mines and Geology).