Ore mined in the Northwest Territories was transported to Port Hope, Ont., then used to develop the bombs that were dropped ...

Marie sat at one of the worktables with a flimsy apparatus of rods, cylinders and wires. On February 17th, 1898, she tested a sample of heavy black pitchblende (a naturally-occurring mineral ...

J. Traill and W. B. McClelland of the Department of Mines at Ottawa. On account of the high-grade character of the pitchblende ores from the Great Bear Lake area, and partly because of the ...