In this Programme from 8.30 to 9.30 the Orchestra will play certain pieces, mostly by well-known Composers. Vocalists will sing, but in no case will the Item or Singer be announced. Listeners are invited to write in giving the names of the performers and the titles and composers' names of the pieces which they think they recognise. Three Prizes will be awarded for the most accurate postcard. Please mark communications:-"Guessing Competition," [address removed]. Closing date, July 30th.