Professor Roentgen's New Discoveries

[Cable to the Sun, New York, April 26.]

Professor Roentgen has published several important new discoveries connected with the X rays. He has ascertained that all solid bodies can generate them under the influence of cathode rays, the only difference being as regards intensity. The most intense are produced by platina. He further says that the insertion of the Tesla apparatus between the ray-producing apparatus and the Ruhmkorff apparatus is highly advantageous. He has made several experiments which confirm his observation that X rays can discharge electric bodies, and that air illuminated by the rays can do the same. He further declares that electric bodies surrounded not by air, but by hydrogen or by highly rarefied air, are also discharged by the rays, though much more slowly.