Folder B.30.1: 'Numerical values of integrals', c.1935. 4 sets of ms. notes.

Folder B.30.2: 'Self-consistent field method for molecular hydrogen', 1934-1938. Multiple drafts (numbered 0-10 by CAC) and calculations.

Includes a note by Coulson 'Subsidiary calculation to help Mulliken'.

Folder B.30.3: 'Lengthy calculations of beastly integrals', c.1935. Extensive notes and calculations.

Includes, in separate binder, Coulson's MS. 'Formulae for beastly integrals'. These notes relate to the work in collaboration with W.E. Duncanson.

Folder B.30.4: 'Kekulé patterns for finding bond orders - Fries rule - unexcited states only', 1935. MS. notes.

Folder B.30.5: Short note on exchange integrals, n.d.

Folder B.30.6: 'Maths Club', 1934.

MS. notes for a talk to be given in collaboration with D.E. Lea, in Coulson's and Lea's hands.

Folder B.30.7: 'Radiation calculations', 1935. Work in collaboration with D.E. Lea. Correspondence and working papers.

Folder B.30.8: 'Helices', 1935. Correspondence with G.F.C. Searle.

Folder B.30.9: 'Polarisability of H₂ ⁺; and H₂ molecules', 1935-1940. 5 sets of ms. notes on the subject.

Folder B.30.10: Thesis submitted for Ph.D., Cambridge, 1936. Plan of Thesis, chapters 1 and 2 only, autograph manuscript.

Folder B.30.11: 'Some thoughts on H₃ Linear', c.1936. 4 pp. MS. notes.

Folder B.30.12: 'Screening constants H₂ ⁺ and H₂', 1936-1937. 8 sets of MS. notes and drafts.

Folder B.30.13: 'Diatomics Z₀, Z₁', 1937-1938. 88 pp. MS. notes and drafts, and some loose pages.

Folder B.30.14: Early work on the Aromatic Molecules, 1936-1937. 10 sets of MS. notes and drafts.

The folder includes a note by R.B. Mallion dated 1975, on the historical interest and seminal ideas of these notes and papers.

Folder B.30.15: Notes and calculations on cyclic polyenes, c.1936. 7 sets of MS. notes and drafts.