'Notes by JSH - Peter Scott archives 1946 for WWT [Wildfowl and Wetlands Trust]', contents of an envelope so inscribed. Manuscript ornithological notes by Huxley on two small cards, apparently from a visit to Peter Scott's wildfowl collection.

'The Humanist Frame', contents of an envelope so inscribed. The material relates to the book by this title (published 1961) edited by Huxley, to which Nicholson contributed a chapter titled 'The Place of Conservation'. 3pp. manuscript notes by Nicholson headed 'EMN Conservation'; 13 pp. draft of Nicholson's chapter; correspondence etc, chiefly regarding publication.

Correspondence regarding Nicholson's acceptance of invitations to give talks and general personal matters.

Personal correspondence, 1951-1963, including some regarding ornithology; brief correspondence etc relating to Nicholson's assistance with biography and other writings concerning Meinertzhagen.

Correspondence with Mellanby's wife regarding the memorial service for Mellanby, with typescript of short address delivered by Nicholson.

Correspondence etc regarding the Julian Huxley Memorial Fund. Chiefly regarding the establishment of the Julian Huxley Memorial Fellowship at Balliol College, Oxford. Nicholson was one of the sponsors of the Fund. (Folder 1 of 2)

'Soviet scientific planning submitted to Julian Huxley 1931', contents of an envelope so inscribed. Typescript paper (translated into English) on Soviet scientific planning originally sent to Huxley and passed to Nicholson, with manuscript notes by Huxley and copy of letter by Nicholson to the sender.

Miscellaneous correspondence and papers regarding Huxley's career and Nicholson's association with him. Nicholson is one of a number of correspondents. Many of the letters are copies. Topics are various, including ornithology and environmental matters. (Folder 1 of 2)

Miscellaneous correspondence and papers regarding Huxley's career and Nicholson's association with him. Nicholson is one of a number of correspondents. Many of the letters are copies. Topics are various, including ornithology and environmental matters. (Folder 2 of 2)

Correspondence etc regarding the Julian Huxley Memorial Fund. Chiefly regarding the establishment of the Julian Huxley Memorial Fellowship at Balliol College, Oxford. Nicholson was one of the sponsors of the Fund. (Folder 2 of 2)

Personal correspondence between Nicholson and Juliette Huxley. Includes one undated black and white photograph featuring Huxley with a group, annotated on the back in Nicholson's hand.

Papers by Nicholson relating to Huxley: Typescript review of an un-named book on Huxley; typescript note on Huxley's life, character etc.

Miscellaneous papers and correspondence post-dating Huxley's death (folder 1 of 2). Includes 1987 material relating to events for Julian Huxley's centenary.

Miscellaneous papers and correspondence post-dating Huxley's death (folder 2 of 2). Includes correspondence and notes regarding the disposal of Huxley's papers in Nicholson's possession, 1986-1988.

Personal correspondence chiefly regarding Jackson's roles in post-war redevelopment in various parts of the world.

Correspondence and papers regarding Nicholson's assistance with a biography of Jackson.

Personal correspondence, 1988, n.d. One copy of a letter by Nicholson is dated '1929' but this appears to be a typographical error.

Correspondence etc regarding Koch's sound-recording work, including a few letters relating to the sound book, and personal matters (some correspondence with Koch's wife and others are included), with script of Nicholson's contribution to the BBC radio programme 'Bird Man' (tribute to Koch on his 70th birthday). (Folder 1 of 2)

Correspondence etc regarding Koch's sound-recording work, including a few letters relating to the sound book, and personal matters (some correspondence with Koch's wife and others are included), with script of Nicholson's contribution to the BBC radio programme 'Bird Man' (tribute to Koch on his 70th birthday). (Folder 2 of 2)

Correspondence and papers following Koch's death. Chiefly 1974, regarding memorial service to Koch, including typescript draft and revised version of the address given by Nicholson, and Nicholson's contribution to a BBC programme in Koch's memory with manuscript notes on his reminiscences of Koch.