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A copy of a letter from W.E. Curtis to H.H. Plaskett, 20 October 1954, and a note from Plaskett to Redman, 21 October 1954, concerning a circular letter to the Astronomer Royal regarding the attitude of the Treasury.

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Correspondence with R. Atkinson and H.H. Plaskett regarding suggestions for worthwhile programmes for a classical Schmidt telescope if it is chosen by the Executive Committee for the Isaac Newton Telescope, with extracts from a letter from A.D. Thackeray, Radcliffe Observatory, South Africa, giving his views.

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A note from H.H. Plaskett and Redman's correspondence with W.M.H. Greaves, Royal Observatory, Edinburgh (who was a member of the Board of Management of the Isaac Newton Observatory), regarding the provision of a Schmidt telescope and problems of design and usage.

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Correspondence with H. Spencer Jones, H.H. Plaskett and W.H. McCrea regarding a draft report to the British National Committee of Astronomy of the Sub-Committee on the Needs of Astronomy in Britain, accompanied by McCrea's draft of the report.

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Correspondence with various firms regarding microphotometers, including a booklet from C.F. Casella and Co. Ltd titled 'A Moll Type Microphotometer and its Performance', 1937; correspondence with W. Edwards and Co. regarding Kipp and Zonen galvanometers; correspondence between H.H. Plaskett and R. Atkinson regarding microphotometers; and correspondence with C.F. Casella and Co. Ltd regarding a contract for a recording microphotometer.

Scope and Contents Correspondence regarding the setting up of the European Southern Observatory and the Southern Hemisphere Observatory, including the following items:Memorandum by Stephen Toulmin regarding the Foundation of Scientific Policy, 1963.Correspondence with Professor R.J. Blin-Stoyle regarding the Institute of Theoretical Astronomy, University of Sussex, 1963.Report by A.B. Muller of the visit of European Southern Observatory observers to Chile, 1963. Correspondence...

Scope and Contents Correspondence relating to the Royal Society's committee on the post-war needs of astronomy, including the following items:Correspondence with F.J.M. Stratton, W.H.M. Greaves, H.H. Plaskett and E.A. Milne concerning an application by E.M. Lindsay for a grant to convert a telescope at Armagh to a Schmidt Camera, 1946-1947, with a copy of the application and a report by H. Spencer Jones.Correspondence with W.H.M. Greaves concerning the proposed Schmidt Camera at Edinburgh,...

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Royal Society notices of meetings of the British National Committee of Astronomy and its sub-committee to discuss Redman's report on the International Southern Hemisphere Observatory, with Redman's handwritten notes in the margin. There are also letters to Redman from sub-members C.W. Allen; W.M.H. Greaves, Royal Observatory, Edinburgh; J. Jackson; W.M. Smart, Glasgow University; and H.H. Plaskett, giving comments and amendments to his draft memorandum.

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Correspondence regarding reports of sunspots, solar flares, etc., including letters from Professor H.H. Plaskett, Professor F.J.M. Stratton and Mr Newton; correspondence concerning the automatic recording of solar noise signals and supply of solar data; and a memorandum by E.R. Mustel titled 'Connexion between Faculae and Geomagnetic Activity', 1944.

Scope and Contents A copy of a letter from D.C. Martin to members of the British National Committee for Astronomy, 29 December 1953, asking them for their views on an attached memorandum by Redman on the proposed Southern Hemisphere Observatory before he attends a meeting in Leiden on 25 January. There are copies of the replies received from J. Jackson; W.H. McCrea, Royal Holloway College; T.G. Cowling, Leeds University; H. Spencer Jones; D.H. Sadler, H.M. Nautical Almanac Office; H.H. Plaskett, Oxford...

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Copies of letters from Redman to Sir David Brunt, Royal Society, and Richard Woolley, 16 January 1956, regarding the joint European Southern Observatory Committee meeting on 20 and 21 April. There are also two letters from Woolley to Redman, 23 January and 6 February 1956, the latter enclosing an extract from a letter by Mark Oliphant, 27 January 1956, on the E.S.O., and a letter from Woolley to H.H. Plaskett, 6 February 1956, supporting the E.S.O. being located in Australia.

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Correspondence with G.M. Sisson, R. Atkinson, H.H. Plaskett and members of the Isaac Newton Executive Committee regarding drafts of the Committee's first report to the I.N. Board of Management, and a letter to the Royal Society booking a room for a meeting of the Committee.

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Correspondence regarding the substitution of a 74-inch telescope for a 98-inch in the case of the Isaac Newton Telescope. The correspondents are R. Woolley, G.M. Sisson (who gives comparative estimates of costs) and H.H. Plaskett.

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A letter from H.H. Plaskett, 10 July 1955, advocating the building of the Isaac Newton Telescope in Britain instead of Australia, the design of the I.N.T., and a I.N.T. Board of Management meeting with Richard Woolley. There is also a copy of a letter from Redman to Woolley, 19 July 1955, enclosing Plaskett's letter and expressing the view that a dual-purpose telescope would be a mistake.

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Letters from H.G. Barker forwarding an estimate and specifications of the Isaac Newton Telescope from Sir Howard Grubb, Parsons and Co. Ltd; letters to Richard Woolley from Redman and H.H. Plaskett commenting on the specifications; a letter from Woolley on the arrangements for a meeting of the I.N. Executive Committee; and Redman's handwritten notes on the meeting of 16 November, including references to his letter of 2 October.

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Correspondence with Richard Woolley regarding the estimates for the Isaac Newton Telescope, the design of the building and dome, brick buildings, thermal control and ventilation of the telescope. There are also letters from G.M. Sisson and H.H. Plaskett agreeing with Redman's views.

Scope and Contents (1) Official correspondence and minutes of the Board of Management regarding the design and finance of the Isaac Newton Telescope:Summary of official correspondence since the last Executive Committee meeting on 16 November 1956, dated 1959.Correspondence concerning microseisms affecting the Isaac Newton Telescope, 1957-1959.Letters and a diagram from Dr David Dewhirst concerning the Lick prime focus cage, 1959.News release from the Admiralty on the subject of...

Scope and Contents Correspondence regarding sub-committee meetings and draft reports to the British National Committee for Astronomy, including a copy of a letter from R.H. Stoy to H. Spencer Jones, 22 January 1955, giving information about the Armagh, Radcliffe and Cape Observatories; revised drafts by Redman and H.H. Plaskett of the introduction of the report; a letter from Redman to W.M.H. Greaves, 9 April 1955, regarding the revised estimates for the European Southern Observatory, as given at the Paris...

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Correspondence regarding the University Observatory, Oxford, including correspondence with the Director, H.H. Plaskett. The letters are concerned principally with the Savilian Professorship of Astronomy. There are also reports on Annual Meetings of the Board of Visitors.

Scope and Contents Correspondence and related papers concerning the Royal Astronomical Society, including the following material:(1) General correspondenceCorrespondence between Sir Harold Spencer Jones and Miss Garratt, Royal Astronomical Society, regarding the Padbury chronometer, 1949.Correspondence regarding the R.A.S. Finance Committee, 1949.Correspondence between H. Spencer Jones and Dr G. Merton regarding reductions of the Stanley Williams variable star observations,...

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Correspondence regarding the Royal Society with, among others, Sir Howard Florey of the William Dunn School of Pathology, Oxford; the Royal Society; Sir William Hodge; Dr C.R. Burch; Professor R.W. Ditchburn of the J.J. Thomson Physical Laboratory, Reading; Dr J.B. Adams of the United Kingdom Atomic Energy Authority; and H.H. Plaskett.

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Correspondence regarding the University Observatory, Oxford, including correspondence with Dr D.E. Blackwell of the Department of Astrophysics; Professor H.H. Plaskett; and W.E. Lamb Junior of the Clarendon Laboratory. Most of the correspondence concerns the Halley Lectureship, the Savilian Professorship and the agenda for visitors to the observatory.

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Correspondence with the Admiralty and minutes of the Board of Visitors relating mainly to visitations, 1938-1941, 1943 and 1946-1956. There are also progress reports, 1953 and 1956, on the transfer of the Royal Observatory to Herstmonceux; correspondence with the Admiralty concerning the new Royal Warrant (1953) for the Board of Visitors; and a memorandum by H.H. Plaskett on the 'Argument in favour of a Wide Angle 100-inch Telescope'.

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Correspondence with H. Spencer Jones, Astronomer Royal, and H.H. Plaskett, Oxford University Observatory, regarding mechanical design requirements and mounting in relation to spectrographs.

Scope and Contents Miscellaneous correspondence with the Royal Society relating mainly to the re-establishment and expansion of astronomy after the Second World War. The papers include the following items:Correspondence concerning the re-equipping of Cambridge observatories, 1948.Minutes of the meeting of the Gassiot Committee on 31 October 1947, with reports from the Kew and Eskdalemuir Observatories.Correspondence concerning Maskelyne manuscripts, 1947.Correspondence regarding...