The Telelectroscope is the latest truimph of the electrician's genius . Writing by electricity (the telegraph ) is already a matter of ancient history ; hearing by electricity (the telephone ) if not yet perfect has become indispensible ; seeing by electricty (the telelectroscope ) is to be the feat of the future . The invention has to be credited to a Galician schoolmaster , Herr Jan Szczepanik , and the experiments that have been made with it in Vienna have been most satisfactory . The mechanism of the actual apparatus is a profound secret , but the accompanying sketches illustrate the theory of the instruments . 23 April 1898