Show important discovery Diaco Disc otery cry new york jan 10 Nil nikola kolo tesla announces that lie he has perfected macum tubes of such bi high bib 0 b illumination pox er that they may be used in lighthouses and that they will enable photographers to work by night as well as day the results which mr telsa has attained has been achieved by the use of his bis vacuum tubes and his oscillator the light which lie he isable is able to produce by this means is as bright as that of the noonday sun by its use every of the object photographed may b bo a made to stand out clearly and distinctly ti ly |