Abstract :
A most interesting lecture given by Dr. Lee De Forest before the Yale University Branch on May 7 was enjoyed by an audience of 2000 people. Dr. DeForest spoke of the various methods which have been employed to obtain “talking motion pictures” and described in detail the various stepsin the operation of the method which he has developed. He also outlined the practical possibility of his development, the “Phonofilm.” Demonstrations of various features of the method were made during the course of the lecture by means of several reels of the film.