The file comprises two further edited versions of the text from the uncompleted project, together with two letters to Crick from Peter Kindersley (of the publishers Dorling Kindersley Ltd) and a copy of a detailed letter from Molly Cox (Producer, Children's Programmes, BBC).

Cox commented (letter to Kindersley, 1 September, 1976): "There seems to me to be a fundamental difficulty in the basic idea. There are two arguments going - one, a physics type explanation of scale - which is always relative and between one thing and another and keeps getting muddled up in my mind (non-scientific) with mass, density, distance, magnitude and so forth. I'm sure there might be a successful book to be written about this; it would need to be much simpler - I don't think it's the book that Francis Crick has written, or it seems to me, particularly wants to write...."