Correspondence and papers regarding the Royal Astronomical Society, including notices of meetings; programmes; correspondence concerning papers to be read; memorandum concerning attendance at meetings, travel arrangements, etc.; correspondence on subscriptions; and correspondence, photographs and reports regarding the Isaac Newton Telescope. The correspondents include Dr J.A. Ratcliffe, Dr W. Heintz, G.J. Whitrow, C.W. Allen, A.W. Rodgers, Professor H. Bondi, Professor J.H. Oort, Dr A. Hogg, Professor McVittee, Dr A. Hunter, Dr R.A. Lyttleton, Professor H.A. Brück, Professor Heinrich, Professor A. Kopff, Professor Brodetsky and Professor R.O. Redman.

Reports on the work of the Royal Greenwich Observatory during 1949-1956, for inclusion in the Annual Reports of the R.A.S.

Correspondence concerning specifications for the Isaac Newton Telescope, 1957.

Correspondence regarding the proposal for the admission of Dr O.J. Eggen to the Fellowship of the R.A.S., 1956.

Programme of a meeting in Bristol, 9 July 1956.

Correspondence with Sir Howard Grubb, Parsons and Co. concerning the Isaac Newton Telescope, including photographs of plans, 1956.

Article for 'The Observatory' magazine: an account of contributions to the R.A.S. meeting of 13 April 1956.

Correspondence concerning the papers 'Studies in the Equilibrium of Globular Clusters' by R. Woolley and D.A. Robertson, and 'Radius Variations and Population Type Criteria for Cepheid Variables' by A.W. Rogers, 1956.

Correspondence concerning the flag used by the Royal Observatory in the 1874 Transit of Venus Expedition to Kerguelen Island, 1955.

Correspondence on the grants by the Lee and Janson Fund of the R.A.S., 1955.

Report on the Isaac Newton Telescope, 1955.

Referee's report on the paper 'The supporting of Telescope Mirrors' by G.M. Sisson, 1955.

Citation on A. Danjon by H. Spencer Jones and correspondence on an award of the Eddington Medal to Professor van de Hulst, 1954.

Correspondence concerning a pension for Miss Wadsworth, 1954.

Correspondence concerning the discussion on airborne magnetometer surveys, 1953

Printed report titled 'Proceedings of Observatories. Royal Greenwich Observatory'.

Royal Astronomical Society balloting list for officers and council, 13 February 1953.

Correspondence on a paper by B.F. Lyot and Dr Aly on the 1952 Total Eclipse.

Correspondence concerning the will of the late W.H. Owston, 1951.

Programme of the R.A.S. meeting in Dublin, 20-24 September 1950.

Correspondence concerning the Eddington Gold Medal, 1949.

Correspondence concerning the transfer of books from the Kuffner Observatory, Austria, to the R.A.S.