Radium bromide Institute had four grams of radium total, which at the time was more than half the world supply. Countries all over the world set out to make as much radium as possible, a time consuming and expensive task. It was reported in "Science" magazine in 1919 that the United States had produced approximately 55 grams of radium since 1913, which was also more than half the radium produced in the world at the time. A principal source for radium is pitchblende, which holds a total of 257 mg of radium per ton of UO. Obviously with so little product recovered
Radium King King" was the first vessel to cross Great Slave Lake—arriving in Yellowknife on June 8. While the lake's ice had broken up, it hadn't moved out. Northern Transportation added additional vessels to her fleet, many of which, like the "Radium Charles" and "Radium Yellowknife" also bore the prefix "Radium", and the line was known locally as the "Radium Line". In 1956 the "Radium King" survived the explosion of mining supplies on a barge she was towing. In 1967 the boat was retired. Currently she is on display outside the Northern Life Museum in Fort Smith, Northwest Territories. The "Radium King"