Contains sporadic observations (later observations are at Boars Hill).

Notes and observations, correspondence, maps, and a draft of 'The origin of the coasting migrants at Land's End. A Supplementary Note'.

Notes and observations by outside workers, correspondence, draft of an unidentified paper on migration (first 2 pages are missing), and a draft of 'Visible Passerine Migration through Central Kent in the Autumn of 1952' by Philip S. Redman.

Drafts and final copy of hints on observing, report of the Sub-Committee and its recommendations, notes by Lack, copy of 'The Autumn Migration of Skylarks in Iceland' by Ivan Goodbody, and a draft of 'Migration against the Wind'.

Correspondence relating to the Sub-Committee, with reports and comments of members.

Typescript draft with extensive corrections, notes on others' work, notes and observations, a related offprint, and correspondence (includes correspondence with Ken Williamson on 'Bird Migration Terms', Ibis, 101, pp.255-256).

Data and correspondence.