Loose-leaf notebook with detailed plans for physics syllabus and for advanced mathematics scheme, with breakdown into terms and periods, forward planning to 1949, and fully written-up course with demonstrations on Surface Tension for 6th Form.

Notebook, '10 Questions', on calculus, algebra and mechanics.

Notebook, 'Higher Certificate Maths and Physics Answers' (analyses of previous examination papers).

Notebook, 'Cambridge Maths. Scholarship papers. Solutions' (analyses of examination papers set by different Cambridge colleges).

Notebook, 'Mathematical Problem Papers, Solutions'.

Folder of material relating to music at St. Edmund's. Includes a talk by Strachey 'On learning a musical instrument', encouraging boys to join the school orchestra, and his description, instructions and diagrams of the school gramophone.

Miscellaneous applications for posts in schools. Includes copies of Strachey's c.v., letters of application and testimonials, correspondence with referees and schools.

Correspondence regarding appointment (1949), housing arrangements (1949-1950), confirmation of appointment as Master of the School (August 1951) and resignation on acceptance of post with National Research Development Corporation (November 1951); mainly with the Headmaster and Bursar.

Receipts and accounts during employment at Harrow (some of the salary statements also cover employment at St. Edmund's School, Canterbury).

Miscellaneous papers and calculations on physics, especially electricity and circuitry. Notes on 'Circle Constructions (Apollonius problem)'. Manuscript on 'Quantum Theory of Radiation', 'Atomic Energy', etc. Detailed tables of pupils' performances in mathematics and physics examinations.

Miscellaneous general knowledge papers set at Harrow by Strachey.

'Cybernetics', 15 pages.

'Social implications of cybernetics. The coming second industrial revolution', 10 pages.

'Interplanetary travel'. Manuscript and typescript versions, and calculations on various factors in space travel. A copy of the Harrow School magazine for 1950, in which the article appeared (pages 18-23) is included. Also included here is a copy of H.M. Inspectors' Report on Harrow, May 1951.

Folder inscribed 'Miscellaneous maths problems (in hand!)'. Miscellaneous notes and calculations, n.d. but c.1950. Some intended for school use, others more advanced.