Sir William Bragg is Director of the Royal Institution and of the Davy-Faraday Research Laboratory. He first broadcast in 1926. and in March, 1931, he gave a National Lecture on Michael Faraday , at the time" of the Faraday Centenary Celebrations. He demonstrates afresh his belief in broadcasting as an important Agent for the spread of scientific knowledge by introducing tonight this new series in the ' Taking Stock' group of autumn talks. The series is in the hands of Mr. Julian Huxley. Its objet is to give an account of scientific research as it is affecting the social needs of the community. The talks will concentrate on the efforts of the scientists to provide better and more abundant food, improved buildings and roads, better industrial methods, and to arouse new attitudes to such social questions as education and the treatment of the criminal. The series opens next week with a conversation in which Professor H. Levy will discuss with Mr. Huxley the objects of the survey.