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 ...

DENVER, Col., May 20. -- What is regarded as the richest known deposit of pitchblende, from which radium is obtained, has been discovered in Colorado. L.G. Nesmith, a mine worker, is the owner.

THE source from which radium is obtained is the mineral pitchblende. This mineral occurs in veins, like the majority of useful metals; I may refer particularly to the mineral veins of Cornwall ...

As plans were being drawn for a Radium Institute, Pierre Curie (a professor and man of equal genius) was run over and killed ...