Comprises:
- C1, Folder containing miscellaneous typescripts: e.g. Demonstration of Special Hollerith Rolling Total Tabulator, National Machine, Brunsviga Twin 13Z, Mercedes 38MS, Demonstration of the Hollerith Punched-Card System Description of the Machines Used, Demonstration of the Hollerith Punched-Card System Analysis of Lines in Spectra, The MADAS Calculating Machine, The Continental Adding Machine, The Brunsviga Model B.20, A New 135 Character Typewriter, Inverse Interpolation;
- C2, Folder of notes and typescripts on various calculations and methods: e.g. Hollerith Summary Multiplication, Notes on Triangulation, S.M. Burrough, 1939;
- C3, (a) Pocket memo book with handwritten notes; (b) Handwritten notes and typescripts re. Hollerith punched-card calculations;
- C4, Power Series, typescript;
- C5, Derivatives in Terms of Differences or Numerical Differentiation, typescript;
- C6, The Evaluation of Determinants on Hollerith, typescript;
- C7, Mercedes 38 MS, typescript;
- C8, Calculation of Intersection with the help of the Brunsviga Double Nova 13Z, booklet, and typescript notes
- C9, Memorandum on the Utility of a Special Computer Machine, typescript. (2 copies);
- C10, Brunsviga 20, typescript;
- C11, Signs of Products formed with the Multiplying Punch, typescript;
- C12, Vortrag des Herrn Dr. Comrie, London, gehalten am 14. September 1928 beim Brunsviga-Kongress. Die Brunsviga Dupla, typescript;
- C13, (a) Remarks on Demeulenaere Cash Register, typescript; (b) Report on Demeulenaere Cash Register, typescript by L.J. Comrie and T.W. Chick, 1938;
- C14, Integration from Differentials and their Central Differences, MS;
- C15, HEC.2 Hollerith Programmer's Guide, typescript;
- C16, The Solution of Simultaneous Equations on Hollerith Machines, typescript;
- C17, The Gause-Doolittle Method for Symmetrical Equations on Hollerith, typescript;
- C18, An Unusual Plugging of the Senior Rolling Total Tabulator and its Application to Decile Loading, typescript;
- C19, Notes on the Solution and Checking of a Set of Simultaneous Equations, etc., typescript;
- C20, Special All-Unit Tabulator, typescript;
- C21, On the Averageing of Times and Angles in the Sexagesimal System, typescript;
- C22, Solution of Simultaneous Equations and the Normalising of a Set of Error Equations on Hollerith Machines, typescript;
- C23, Involute Functions, typescript;
- C24, Subtabulation of an Integral Given a Difference Table of the Integrand at the Pivotal Interval, handwritten notes;
- C25, The Field of Application of Table of 1/Vn, typescript;
- C26, Mathematical Computing, typescript;
- C27, Repayments of Loans, typescript;
- C28, The Continental Adding Machine, typescript;
- C29, Variance, typescript;
- C30, The Evaluation of Determinants on "Hollerith", typescript;
- C31, A Method of Dealing with Two Quantities on Each Counter When Subcontracting, typescript;.
- C32, Build up' Method for Determination of Interatomic Distances in Crystals, typescript;
- C33, Demonstration of the Hollerith Punched-Card System Description of the Machines Used, typescript;
- C34, Demonstration of Special Hollerith Rolling Total Tabulator, typescript;
- C35, File on Continental Class 800 Machine, 1938;
- C36, Continental Class 800 Machine, typescript (2 copies);
- C37, Continental Class 800 Machine, handwritten manuscript;
- C38, Report on the Milne Method, 1945, handwritten manuscript;
- C39, Miscellaneous SCS notes and documents, mostly n.d.;
- C40, Miscellaneous SCS notes and documents, mostly n.d.