Forewords for Conservation in Practice, by A. Warren and F.B. Goldsmith, John Wiley, 1974, and for revised edition, 1983. Typescript draft, with manuscript revisions, and related letter; 2pp typescript for revised edition.

Published 1975; manuscript ornithological field notes, 1974-1975, used for the paper; typescript draft and revised version with further manuscript revisions; brief correspondence related to publication.

Text is structured as if for a bird guidebook, probably Birds of the Western Palearctic.

Manuscript draft of the paper (undated); typescript version with a few manuscript revisions; manuscript field notes on Balearic Crossbill, headed 'Cala D'Or Jul-Aug 1974', probably related to the paper.

Two typescript drafts respectively titled, with manuscript revisions. One is dated Aug 1978. Included are typescript bird lists, 1970-1992, also found in the envelope.

Field notebook (ring-bound exercise book) inscribed 'Majorca Field notes 1970 & 1974, '75, '78' on cover. There is also the further inscription on the cover: 'General Bird Lists & Audouin's Gull, Crossbill, Skylark etc removed 9/92'. In Nicholson's hand. Detailed bird notes recorded at various locations in Majorca, with dates. Towards the back are several pages of notes relating to the conservation and ecology of the island. One loose sheet of notes…

Chiefly 1970-1972 and relating to a proposed paper for British Birds by Nicholson and, possibly, others.

Brief correspondence regarding request to contribute etc; typescript of foreword.

Typescript draft with original title 'The Recent Impact of Ecology'; 'Final' version.

Typescript draft (in English) with manuscript revisions; revised or final version; list of illustrations; reprint (in Italian).

Typescript draft; cutting of printed article.