Loose-leaf ring binder of correspondence, while Scott was in Princeton. Manuscripts and working notes are also included.

Includes a manuscript index by Strachey. Letters are numbered in sequence as follows: DS I, CS I (with manuscript and notes), DS II, CS II, DS III, DS IV (including plans for series of P.R.G. Technical Monographs), CS III, DS V, DS VI (including correspondence with D. Michie, N. Belnap), CS IV (including manuscript by C. Wadsworth), CS V (including manuscript of Scott's OMTC papers), CS VI, CS VII, DS unnumbered (reply to C. Wadsworth), DS unnumbered (including correspondence with A. Evans, D. Michie), DS IX.