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A copy of a letter from J.F. Hosie to V.C. Reddish, Royal Observatory, Edinburgh, expressing concern about the computer control system study and the decision by S.C.B. Gascoigne to consult with astronomers before a final specification is written.

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A letter from S.C.B. Gascoigne, 29 January 1974, enclosing calculations concerning the secondary mirror and referring to f/8 secondary mirror tests, the progress of the telescope on site and floods. The letter also comments on an enclosed copy of a letter from I. Munro to H. Wehner, 18 January 1974, which is accompanied by a list of Sir Howard Grubb, Parsons and Co. Ltd work for the Anglo-Australian Telescope outstanding at 11 November 1973.

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A copy of a letter from S.C.B. Gascoigne to E.G. Bowen, Commonwealth Scientific and Industrial Organisation, regarding mirror distortion and specifications for the 150-inch blank, with reference to tests on the Lick Observatory 120-inch telescope, included in the 'Astronomical Journal', No. 69, 1960.

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A letter from S.C.B. Gascoigne, 26 February 1968, and Redman's reply of 27 February, regarding mirror specifications corrections and the incorporation of E.H. Linfoot's suggested changes in Redman's version of the mirror supports. There is also a handwritten draft of a cable from Redman to Stella Wilkie, 27 February 1968.

Scope and Contents A handwritten letter from S.C.B. Gascoigne, 19 January 1971, regarding anti-reflection films, correctors, computer estimates and Sir Howard Grubb, Parsons and Co. Ltd redesigning costs. Gascoigne encloses extracts from the Kitt Peak National Observatory specifications for the 'Wynne Prime Focus UBK-7 Triplet Corrector' on optical coating, and also an article by Lissberger from 'Progress in Physics', 33, p. 231, giving specifications for simple anti-reflection coatings. Gascoigne's letter has...

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A copy of a letter from S.C.B. Gascoigne to William A. Goodsell regarding his tests of the Waterworth spectrograph camera and recommending its abandonment. There is an accompanying table containing extracts of the results of running rays through two fans.

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A letter from William A. Goodsell, Project Manager, Anglo-Australian Telescope, 14 September 1970, enclosing 'Matters for Action' resulting from the sixth Joint Policy Committee meeting, and requesting that a draft technical section for the corrector lenses specification be prepared by Redman and S.C.B. Gascoigne. There is also a copy of a second letter from Goodsell, 29 September 1970, regarding a directive missing from the 'Matters for Action' list.

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A letter from Redman to R.J. Harris enclosing Redman's notes on his visits to Australia and Canada to discuss the Anglo-Australian Telescope and other matters, including his informal discussions with S.C.B. Gascoigne and J.D. Pope at Canberra, 18 March 1970; the preliminary astronomers' meeting, Canberra, 20 March; the Joint Policy Committee meetings, 24-25 March; his visit to Mount Koban, 29-30 March; and his visit to the Dominion Astrophysical Observatory, Victoria, B.C., 31 March.

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A letter from Sir Richard Woolley to Dr S.C.B. Gascoigne of the Mount Stromlo Observatory regarding Eggen's sequence of values in Omega Centauri.

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A copy of a letter from Redman to S.C.B. Gascoigne regarding general matters concerning the Anglo-Australian Telescope; news from Sir Howard Grubb, Parsons and Co. Ltd; and tentative travel plans for Redman's Canberra visit.

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A letter from Redman to S.C.B. Gascoigne, with accompanying notes on a conversation between R.V. Willstrop and D.S. Brown concerning the little progress on the primary and secondary telescope mirrors.

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A letter from Redman to S.C.B. Gascoigne commenting on the Proceedings of the European Southern Observatory/Science Research Council/European Organization for Nuclear Research conference in May and referring to his invitation to the inauguration of the Anglo-Australian Telescope.

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A copy of a letter from Redman to S.C.B. Gascoigne enclosing a first version of his report on his visit to the Siding Spring Observatory during 24 November - 15 December 1974.

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A copy of a letter from Redman to S.C.B. Gascoigne, 29 January 1975, referring to Redman's South African visit; the Sutherland site; and the possibility, following an approach by R. Woolley, of Redman acting as a consultant in the re-commissioning of the 74-inch telescope. There is also a copy of a Kodak advertisement from 'Science', 31 January 1975, concerning the soaking of IIIa-J plates in hydrogen after dry nitrogen.

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A copy of a letter from Redman to S.C.B. Gascoigne, Mount Stromlo and Siding Spring Observatory, requesting his opinion on mirrors and coating for the proposed 2.5m N.H.O. telescope.

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A copy of a letter from Redman to S.C.B. Gascoigne requesting an estimate of misalignment tolerances of the corrector lenses and referring to a meeting of the Royal Astronomical Society, during which C.A. Murray spoke on using the Isaac Newton Telescope for astrometry, at prime focus, with a Wynne corrector.

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A letter to S.C.B. Gascoigne, 9 August 1971, suggesting subjects for discussion at the meeting of the Rodgers Committee on 27 August, and also recommending that J.D. Pope and representatives from P.I.L.O.T. (Panel on Instrumentation for Large Optical Telescopes) be invited. The letter was written following the receipt of an enclosed telegram from the Science Research Council, 4 August 1971, relaying the contents of a cable from D.W. Cunliffe.

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A copy of a letter from S.C.B. Gascoigne, 9 June 1967, acknowledging Redman's draft report on the mirror blank, and enclosing copies of a cable to Corning Glass Works, Owens-Illinois Inc. and the General Electric Company, 5 June, and of a letter to K.N. Jones, 5 June, concerning the placing an order for the mirror blank with Corning Glass Works before the French do so, and including information on other firms in the running.

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A letter from Vic Williamson regarding the damage to the Station equipment at Siding Spring caused by rainfall, and a letter from S.C.B. Gascoigne concerning a change of site, an error in the computer program and Redman's travel arrangements for his visit to Australia.

Scope and Contents 'Miscellanea Mathematica authore J. F.', a collection of mathematical treatises and calculations, 184 folios: observations by Hevelius, Galileo and Towneley, copied in 1671 (4r-7r); a draft treatise, 1672, discussing extracts from the letters of William Crabtree and William Gascoigne of 1640-1642 (9v-22r), with biographical information about them (22r); collected observations of Jupiter's satellites, with an excerpt on the comet of 1681 (22v-24r); observations made by Richard Towneley during...

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A copy of a memorandum from M. Beard to S.C.B. Gascoigne, 16 March 1973, regarding time allocation on the Anglo-Australian Telescope.

Scope and Contents Memorandum from H. Abraham to Professor B.J. Bok, Dr Hogg, Dr Gascoigne, Mr Thomas and the Time Service staff on Herstmonceux meridian observations, detailing transit circle observations, tapes and manually operated punch, Melbourne and Sydney observations of photographic zenith tube stars, the Mount Stromlo transit instrument and punched cards, the Moon camera, the photographic zenith tube measuring machine, the Kustner polygon of photographic zenith tube groups, photographic zenith tube...

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The minutes of a meeting of the United Kingdom delegation with the Australian Large Telescope Committee held at 10 am on 27 June 1964, with typewritten notes by S.G.B. Gascoigne entitled '150-inch Optical Design'.

Scope and Contents A miscellaneous set of black and white photographs:Pope, Gascoigne and others during a visit, 18 July 1967, 3 photographs.Mann, Gascoigne, Wehner, Pope and Redman at Corning Plant, Bradford, Pennsylvania, 20 July 1967.'Helwan mirror. No. 2', undated.CER-VIT Reflective Mirror Blank, 4 undated photographs.'C101 Electron Micrograph', 2 undated photographs.Russian 6-metre Alt-Azimuth Telescope, undated.'NGC 2004 (LMC) 5 min. D Plate 45º...

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An undated note by S.C.B. Gascoigne on the Anglo-Australian Telescope optical design, requesting that C.G. Wynne be asked to produce designs for the correctors.