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
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actinium aluminum apparatus arc lamp arc light atomic barium barium chloride battery beam of light Bidwell black paper blue bulb buoy cathode rays caused chemical chloride circuit coated coil color connected copper Curie deviable disease disk effect electricity electrodes electroscope emanations employed experiments exposed exposure Finsen Institute fish flame fluorescent Fritts Giltay glass gramme heat Henri Becquerel Heydweiller investigations iron J. J. Thomson lens Lord Kelvin luminous paint Lupus Vulgaris magnets Mercadier metallic mica motor penetration phenomena phosphor phosphorescent phosphorescent substances photograph plate pitchblende placed polonium possess produced Prof radiations radioactive radioactive substances Radiograph radiophone radium rays resistance Roentgen rays Ruhmer's Photographophone Rutherford sample screen selenide selenium cell shown speaking arc sulphide of calcium sunlight surface telephone temperature thermit thorium tiny transmitter treatment tube containing tubes of radium tungstate of calcium ultra-violet light ultra-violet rays uraninite uranium violet wire writer X-rays