14 APRIL 1923, Page 3

It stems. that a new , discovery in artificial lighting - ha'S been

made by M. Risler, a young Freneh- scientist who in former-days was head of the labonsitmies: of Strasburg University. The light produced appears to be heatless and in production causes none of the waste which charac- terizes all present forms of artificial lighting. M. Rider set himself to solve the secret of the glowworm, and claims to have succeeded in his ambition by utilizing tubes and bulbs filled with a special gas under special pressure. Electric current is then passed through the tubes, which are:painted with a phosphorescent mixture. A very brilliant light is• thus produced, for which the installation, would appear to be of the simplest,