Show precious Pre clou salt what ts Is known as I 1 radium ts Is a 3 radium salt usually either radium bromide or radium chloride sometimes radium sulphate tiny grains of these salts ari are extremely precious and are usually sealed up in little glass bulbs the radium in one of the first bulbs that were nere received in london had a curious history A physic tin in portland place was applying the bulb to a patient when hen he be accidentally let it fall and a moment after crushed it under hia his foot the value of the radium to the physician was very great lie ile removed bis his boots from his feet and cut out a square of his valuable carpet ile had boots and carpet burned and out of he the ashes refined the original radium salt |