Correspondence, notes, memoranda and minutes regarding the Isaac Newton Telescope, including the following items:

Copy of a report on post-war needs in astronomy laid before the Council of the Royal Society on 7 March 1946, with related correspondence, 1961.

Correspondence regarding the weight of the Isaac Newton Telescope as given by Sir Howard Grubb Parsons and Co. Ltd, 7 February 1961.

Memorandum by H. Barker giving a brief history of the progress of the Isaac Newton Telescope, 1959.

Bibliography of the Isaac Newton Telescope, 1959.

Correspondence regarding the proposed merger of the Board of Management of the Isaac Newton Observatory with the Board of Visitors of the Royal Greenwich Observatory, 1957.

Report by Sir Howard Grubb, Parsons and Co. Ltd summarising the manufacturing history of the 98-inch disk, 1951.

Bill of landing for the 98-inch disk shipped from New York to London, 1949.

Correspondence with Judge Henry S. Hulbert, President of the McGregor Fund, who presented the 98-inch disk to the R.G.O., 1949.

Correspondence with the Corning Glass Works, New York, who cast the 98-inch blank in 1936, giving details of the mirror, 1949.

Correspondence regarding post-war needs in astronomy, 1946.

Report of the Newton Memorial Observatory Committee, 1946.

Notes on the proposal to set up a large telescope in Great Britain, 1946.

Report to the President and Council of the Royal Society stating the need for a large telescope in Britain, 1946.

Memorandum on the Newton Tercentenary celebrations, 1945.