Comprises:
- A1, Reprint of papers on Damped Langrian Frequency Equations and An Escalator Process for the Solution of Linear Simultaneous Equations, To A.M. Turing from J. Morris 3/12/48;
- A2, M.H.A. Newman, Alan Mathison Turing 1912-1954, Biographical Memoirs of Fellows of the Royal Society, vol. 1 (1955);
- A3, Sara Turing, Alan M. Turing (Cambridge: Heffer, 1959), pp.157. Inscribed inside: C.W. Wardlaw (who, alas! wrote his obit. for Nature);
- A4, B.E. Carpenter and R.W. Doran, The Other Turing Machine, Massey University Computer Unit Report No 23, typescript, pp. 41, 1975.