Box containing slides from visits 1976, 1977. Slides annotated in Nicholson's hand.

Box containing slides from visit, 1977. Slides annotated in Nicholson's hand.

Box containing slides from visit, May 1979. Slides annotated in Nicholson's hand.

Some material is in Spanish.

Letter regarding the possible formation of an 'Intelligence Unit', 1959; 9pp typescript text of address at AGM April 1966, titled 'Changing Approaches to NC [nature conservation] in Britain', with later attached note by Nicholson describing the address as 'a particularly significant review of the first twenty years of action in UK on nature conservation'; letters re invitation to Nicholson to accept nomination as a Vice-President of the Council, 1967.

Papers by Nicholson include the following: printed paper for 1963 Conference; manuscript draft concerning the 1965 Conference; report of address delivered at the 1970 Conference.

Papers by Nicholson include the following: printed paper for 1963 Conference; manuscript draft concerning the 1965 Conference; report of address delivered at the 1970 Conference.

Nicholson's correspondence and notes, mostly typescript, chiefly regarding a possible 25th anniversary event to be organised by the Royal Society of Arts

The contents of an envelope: Correspondence, topics include early surveys and proposals which involved the World Wildlife Fund, 1970-1988.

Contents of an envelope: Correspondence, topics include early surveys and proposals which involved the World Wildlife Fund, 1970-1988.

Contents of a wallet: Typescript notes, reports, minutes, research programme, some by Nicholson; letter regarding purchase of S'Albufera, 1985; copy of an earlier paper, 1971.

Notes and draft reports by Nicholson, mostly manuscript, with brief correspondence. Included are the following: 6pp manuscript notes headed 'Visit to S'Albufera Oct 1990' and 8pp manuscript notes headed 'Albufera Natural Park Mallorca', Sep 1985.

'S'Albufera MS notes', contents of an envelope so inscribed. Notes and draft reports by Nicholson, mostly manuscript, with brief correspondence, all undated.

Manuscript notes by Nicholson, contents of an envelope. Included are the following: 1p 'Questions' relating to a visit to S'Albufera, Sep 1985; 3pp bird list from a visit, Mar-Apr 1993.