The photo-electric cell is more sensitive to ultra-red than to ultra-violet light, Mr. Campbell explained. Sheets of blue and red glass were then inserted in the light beam from the arc, and, later, in the light beam between the photo-cell and exciter lamp. While the blue glass

SECURES REGINALD

European Representative : WALTER PEARCE, 33, King St., Covent Garden, London, W.C.2.

Standardisation The standardisation of camera and projector apertures throughout the American industry following the activities of the Academy of Motion Picture Arts and Sciences is welcome, in so far as it secures uniformity of practice. On that score it is to be hoped that it w

We have in mind the case of a projectionist who complained that the exciter lamp on one machine lasted much longer than that on the other, despite the fact that he took every care to run them under rated conditions. That difference in life was very marked and the condition was a

Miss Jeffreys, manageress of the New Imperial, Cardiff, appears to hit upon unusual and attractive schemes for pulling in the crowds. During recent weeks " Film Face " competitions have been run by several Welsh exhibitors, and, as all of them proved exceptionally successful, Mi

SEE US Another Welsh tie-up scheme which should commend itself to exhibitors in other parts of the country has just been staged at Barry by W. A. O'Connor, owner of the Theatre Royal and Savoy Cinemas, Barry. Mr. O'Connor, in conjunction with the management of Bindle's, the best

A Gracie Fields impersonation competition is the latest patron-catcher at Smart's Picture Palace, Bethnal Green, E. Entrants have to bring their own copy of one of Gracie's songs, and the audience does the judging. Prizes are :—First, 355. ; second, 255. ; third, 1. Heats are ta