Comprises:
- D1, Recent Computer Projects, pp. 2, n.d.;
- D2, The Electronic Principles of Digital Computers, Electronics Forum (1948);
- D3, (with K.H.V. Booth) Principles and Progress in the Construction of High-Speed Digital Computers, Quarterly Journal of Mech. and Applied Math., 2 (1949);
- D4, A Magnetic Digital Storage System, Electronic Engineering (1949);
- D5, Design Principles of All Purpose Digital Computers, Acta Physica Austriaca (1950);
- D6, The Physical Realization of An Electronic Digital Computer, Electronic Engineering (1950);
- D7, On Optimum Relations Between Circuit Elements and Logical Symbols in the Design of Electronic Calculators, Journal of British Institution of Radio Engineers (1952);
- D8, Computers: The Next Generation, Purchasing Journal (1960);
- D9, (with K.H.V. Booth) Automatic Digital Calculators (London: Butterworths, 1965). Photocopies of various pages, e.g. bibliography.