'A New Bird Comes to England', News Chronicle, 1 Sep 1938. A slightly condensed version of this article was reproduced in Synopsis, Dec 1938. Correspondence with 'Synopsis' regarding publication and typescript of the article (probably condensed version).

The article reviewed The Life of the Robin, by D. Lack, London 1943.

Manuscript diary (loose pages) of bird sightings on a voyage from New York, USA, to the UK, Oct 1945 (first page headed 'Atlantic Bird List Oct 1945'); 2 typescript drafts of the paper (one completed) with manuscript annotations and revisions. The information in the diary was incorporated into the published paper.

Further typescript of the paper, the text showing some changes from the versions in MS. 15041/954; copies of letters from Nicholson to various individuals regarding the preparation of the paper and related matters, 1945-1946.

Set of notes for a talk given by Nicholson at 'LNHS [London Natural History Society] 13.4.48'; draft titled 'Regions of the North Atlantic' (some or all of it appears to be the work of another).

Chiefly printed charts showing 'Regions of the North Atlantic', some with annotations in Nicholson's hand.

Revisions of Nicholson's earlier contributions on 'Reproductive Habits [of birds]' and 'Bird Population', 1946. Corrected proof and letter etc from publisher. Included is an earlier letter from publisher (1928) regarding one of Nicholson's original contributions.

Two typescript drafts; A note at the beginning of one of them states that the article was the product of notes which were 'intended simply to open small informal discussion...'

Incomplete rough manuscript draft of first article; typescript revised version and one page from an earlier typescript draft; letter from The Observer (Jun 1954).

Typescript of second article; letter from The Observer regarding publication; letters to Nicholson from readers concerning the articles.