20 AUGUST 1904, page 17

Radio-activity Is A Property Of Matter Specially Pre-...

five bodies, the recent study of whose attributes has threatened the traditional foundations of certain branches of physical science. Only speaking here of radium, which is......

It Is Never An Easy Task To Write The History

of one whose career is suddenly cut short, and who appeals to the world rather by his promise than by his fulfilment. For the author must try to show to others what the......