Preliminary investigation into possibilities for producing silica sand from British Columbia sand deposits - British Columbia. Department of Mines; Cummings, John Moss, 1910- (Victoria, B.C., C.F. Banfield, printer to the King, 1941)
Cover-title.
At head of title: British Columbia. Dept. of Mines. Hon. W.J. Asselstine, minister. John F. Walker, deputy minister.
Reproduced from type-written copy.
"References": 3 leaves at end.
Keywords: Sand; Mines and mineral resources -- British Columbia