Folder B.29.1: Extensive miscellaneous early calculations on wave functions, and 2s and 2p screening, concerning methane and neon, small and large separations, 1933-1936.

This is a bulky folder incorporating several folders of notes, some labelled and described by Coulson, and some loose papers.

Folder B.29.2: Extensive working papers and correspondence on H₃, H₃ ⁺, and H₃ ⁺⁺, 1934-1938.

Includes letters to H.M. James and G.S. Gordadse regarding mistake in R.S. 8, February 1938.

Folder B.29.3: 'Vibrational states of methane', c.1934. MS. notes.

Folder B.29.4: 'Stark effect', c.1933-1934. 14 pp. MS. notes.

Folder B.29.5: 'Hydrogen bond?', c.1934. 4 pp. MS. notes.

Folder B.29.6: 'W.K.B. method', 1934. Miscellaneous MS. notes.

The folder includes a MS. 'poem' by Coulson in the style of 'Hiawatha', thanking a friend for a sponge-cake.

Folder B.29.7: 'Comparison of Heitler-London, molecular orbital, and true wave-functions and energies', c.1934. MS. notes and diagrams.

Folder B.29.8: 'Excited H₂', 1934. 7 pp. MS. notes.

Folder B.29.9: 'Hydro', 1934. Notes and references on water flow.

Folder B.29.10: 'Exponential integrals', 1934, 1942. Work in collaboration with W.E. Duncanson. Correspondence and working papers.