50 YEARS AGO –APRIL, 1937– MYSTERY OF RADIUM AND ITS RAYS

One of the first questions of visitors to the radium laboratory is: “What does radium look like?” Imagine a small glass tube, the size of a match, partly filled with a gray powder; that is the picture of about $2,000 worth of radium bromide as we receive it from the producers. Reprinted from The Northern Miner, April, 1937.