in which leading scientists speak in a programme edited by Professor E.N. da C. Andrade, F.R.S.

'Background to Television,' with Sir Edward Appleton, K.C.B., C.B.E., F.R.S., Secretary of the Department of Scientific and Industrial Research, Sir Robert Watson Watt, C.B., F.R.S., Scientific Adviser on Telecommunications, Air Ministry, and Professor E.N. da C. Andrade. F.R.S., Quam Professor of Physics in the University of London