One box of 66 envelopes, each bearing title, dates and place of delivery; many with related correspondence and background material, and some containing more than one address: D.6.1: 'Mission notes', 1962-1964 D.6.2: 'Problems of the atomic age', 1959-1963 D.6.3: 'The Bible - why bother about it?', 1957 D.6.4: 'Science as a religion', 1956 …