"Selenium." . . "Elements, Radioactive." . . "Luminescence, Physical." . . . . . "Radium and other radio-active substances polonium, actinium, and thorium : with a consideration of phosphorescent and fluorescent substances, the properties and applications of selenium and the treatment of disease by the ultra-violet light"@en . . "Radiumstrahlen / Therapie." . . "Radium, and other radio-active substances; polonium, actinium, and thorium, with aconsideration of phosphorescent and fluorescent substances, the properties and applications of selenium and the treatment of disease by the ultra-violet light. By WilliamJ. Hammer"@en . "UV-Strahlen / Therapie." . . . . "Radium, and other radio-active substances; polonium, actinium, and thorium, with a consideration of phosphorescent and fluorescent substances, the properties and applications of selenium and the treatment of disease by the ultra-violet light" . . . . . "Radium, and other radio-active substances : polonium, actinium, and thorium, with a consideration of phosphorescent and fluorescent substances, the properites and applications of selenium and the treatment of disease by the ultra-violet light" . . . . . . . . "Radium"@en . . "Radium, and other radio-active substances polonium, actinium, and thorium, with a consideration of phosphorescent and fluorescent substances, the properties and applications of selenium and the treatment of disease by the ultra-violet light"@en . . . . . . "Radium, and other radio-active substances; polonium, actinium, and thorium. With a consideration of phosphorescent and fluorescent substances, the properties and applications of selenium, and the treatment of disease by the ultra-violet light"@en . . "Radium and other radio-active substances : polonium, actinium and thorium, with a consideration of phosphorescent and fluorescent substances, the properties and applications of selenium and the treatment of disease by the ultra-violet light" . . . . "Strahlung / Phosphoreszenz." . . "Radium and other radio-active substances polonium, actinium, and thorium" . "Radium, and other radio-active substances : polonium, actinium, and thorium : with a consideration of phosphorescent and fluorescent substances, the properties and applications of selenium and the treatment of disease by the ultra-violet light"@en . . "Radium, and other Radioactive Substances; Polonium, Actinium, and Thorium, etc. (A lecture.)"@en . . "Radium and other radio-active substances; polonium, actinium and thorium"@en . . . . . . . . . "Radium, selenium, ultra-violet light, etc"@en . "Thorium." . . "Phototherapy." . . "Ultraviolet Therapy." . . "Ultraviolet therapy." . "Substances radioactives." . . "Radioactive substances." . . "Phosphorescence." . . "Actinium." . . "Radium." . . . . "Polonium." . .