Show radium to illuminate gun sights the discovery of the latest use to which radium can be put the illumination of gun sights and the like at night time seems seeing to indicate that it will play an important part in warfare in gun sights leveling instruments and telescopes were Is what Is caned called a mark which Is used to obtain a faithful result these marts marks of course are useless in tha dark ark and though many ways of them have been tried nothing has proved satisfactory 4 sir mr andrew A common of eaton rise paling faling was the first to attempt to bobb the difficulty by the use ot of radi radium tim and his experiments experiment a were so successful that he be applied tor for a patent unfortunately he did not live to have it granted but the complete specifications submitted by mrs common his widow anil and executrix have just been accepted london daily mall mail |