Ciba Foundation General correspondence and papers including re invitation to Dale to speak at the opening of the new Ciba International Centre with copy of his address (1949); a demonstration of closed circuit television (1959); copy of Dale's address to the 10th Anniversary Symposium Dinner (1959); invitation to Dale to chair a symposium on 'Enzymes and Drug Action' (1961); correspondence re published volumes of colloquia and symposia; printed programmes of various symposia, 1952-1959 1947-1967