Correspondence regarding the functional specification of the computer system, including copies of Redman's letters to W.A. Goodsell and M. Beard, commenting on the draft of 1 September 1971; Redman's correspondence with B.E.J. Pagel, J. Ring, D.E. Blackwell, V.C. Reddish and J.W. Gietzen, including reference to confusion between the functional and technical specifications; a letter and a cable from M. Beard concerning the revised functional specifications; and Redman's letter to Beard, 31 December 1971, regarding meteorological instruments.