Letters to Robert Atkinson, with a few other items, including the following:

Letter from R.S. Colebrook, Chichester, 3 March 1947, regarding the cosmic ray theory.

Letter from A. Parson, Maryport, 12 December 1947, concerning his investigation into binaries.

Letter from G.M. Sisson, Sir Harold Grubb, Parsons and Co. Ltd, July 1949, on the design of the impersonal micrometer for the Cadiz 7-inch meridian circle, with a handwritten draft reply by R. Atkinson.

Letter from H.H. Plaskett, Oxford University Observatory, 28 January 1949, concerning R. Atkinson's comments on the Cassegrain spectroscope in relation to work being carried out by E.H. Linfoot.

Letter from W.A. Goodchild, Colwyn Bay, 24 July 1950, concerning H.F. Finch's paper 'The Fluctuation in the Length of the Day', with reference to Atkinson's comment in 'The Observatory', February 1950.

Letter from D.C. Manderville, Scientific Research Branch, Göttingen, 25 July 1950, requesting advice for the visits to the U.K. of promising young German scientists.

Handwritten letter from H. Charnock, Admiralty Research Laboratory, 7 October 1950, giving the address of Dr Deacon in South Africa.

Note from H.M. Dockyard, Chatham, 17 October 1953, concerning machinery records for Greenwich, Abinger and Herstmonceux, with drawing number 22 attached showing the Royal Observatory, Greenwich, and the Abinger Magnetic Station workshops.

Correspondence between Admiralty and R.W. Munro Ltd, 1956, regarding a Regeneration Frequency Monitor and a bottom sampler, with a handwritten memorandum from O.W.P. Ball and office memoranda 27/56 and 28/56 on the repayment of services.

Letter from D.C. Martin, Royal Society, to R. Woolley, 19 October 1956, concerning Atkinson's attendance at national committee meetings as deputy for Woolley.