Scope and Contents Correspondence of O.J. Eggen with the following individuals:F. Carmody of the French Department of the University of California, Berkeley, concerning the controversy between Herelius, on one side, and Hooke, Halley and Flamsteed, on the other, with regard to the relative merits of visual and telescopic sights, mentioning the Jai Singh Observatories.Colonel H. Quill, regarding Harrison's table of the equation of time.A.D. Thackeray of the Radcliffe Observatory,...

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A copy of a letter from Redman to Sir Martin Ryle, 9 January 1973, enclosing copies of Redman's correspondence with Dr Allan Sandage, Mount Wilson and Palomar Observatories, 22 December 1972 - 8 January 1973, regarding the number and size of telescopes required for the Northern Hemisphere Observatory.

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Correspondence between Sir Richard Woolley and A.R. Sandage regarding work on M67 and opposition to project 'West Ford'.

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Correspondence with Oxford University, including correspondence with D.E. Blackwell of the Department of Astrophysics, University Observatory; correspondence with G.P.V. Collyer regarding the Halley Lecture 1964; an agenda for a meeting of the trustees of the Johnson Memorial Prize; correspondence with B. Warner of the Department of Astrophysics; correspondence with A.R. Sandage of the Mount Wilson and Palomar Observatories; and a list of astronomical publications.

Scope and Contents Correspondence with the General Secretary and members of the Royal Astronomical Society regarding arrangements for committee and other meetings; the election of Fellows and Associates; the refereeing of papers for publication; the nomination of T.G. Cowling as President for 1965; a second volume of the 'History of the Royal Astronomical Society', covering 1920-1970; the nomination of F. Hoyle and A.R. Sandage for Gold Medals; and the future of the Royal Astronomical Society Club and of the...

Scope and Contents Correspondence with American observatories and universities, including Donald H. Menzel of the Harvard College Observatory, Cambridge, Massachusetts; A.R. Sandage of the Mount Wilson and Palomar Observatories, Pasadena, California; Mrs J. Wardlaw of the University of Texas, Austin; R. Zander of the John Hopkins University, Baltimore, Maryland; Professor S.W. McClusky of the Warner and Swasey Observatory, East Cleveland, Ohio; John R. Isbell of the Case Institute of Technology, Cleveland,...

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A letter from A.R. Sandage to Sir Richard Woolley regarding Woolley's measurements of the plates of variables and concerning other matters.

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A letter from A.R. Sandage to Sir Richard Woolley regarding the blinking of all plates of both variable star field 1 and 2, work on the Small Magellanic Cloud cepheids by Arp, and the importance of the date on the Large Magellanic Cloud cepheids.

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A letter from A.R. Sandage to Sir Richard Woolley regarding the stability of the colour scales across the Cape refractor plates.

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A letter from Margaret Burbidge, 23 January 1973, enclosing a copy of a letter from Brian Warner, University of Cape Town, 4 January 1973. Warner's letter is the last of the replies from overseas astronomers asked about their views of the proposed Northern Hemisphere Observatory, and was not circulated to the rest of the N.H.O. Planning Committee. In her letter, Burbidge comments on points raised by Allan Sandage, Mount Wilson and Palomar Observatories.

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A letter from Sir Richard Woolley to A.R. Sandage of the Mount Wilson and Palomar Observatories regarding measurements taken of the photoelectrically determined stars in the III Field and other matters.

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A letter from Sir Richard Woolley to A.R. Sandage regarding the positions of certain variables on the 74-inch plates.

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A letter from Sir Richard Woolley to A.R. Sandage regarding colour arrays in the large Magellanic Cloud and progress with work on the variables in Fields 1 and 2.

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A letter from Sir Richard Woolley to A.R. Sandage regarding the up to date state of the Field 1 measurements and enclosing a table to show this.

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A letter from Sir Richard to A.R. Sandage regarding plates to be sent from South Africa and enclosing a list of good plates of Field 1 already cleared.

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A letter from Sir Richard Woolley to A.R. Sandage regarding the measurement of all of the 100-inch and forty per cent of the 60-inch Coudé plates for radial velocity.

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A letter from Sir Richard Woolley to A.R. Sandage regarding the results of Sandage's survey of NGC 1783.

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A letter from Sir Richard Woolley to A.R. Sandage regarding the progress of work on the Large Magellanic Cloud variables.

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A letter from Sir Richard Woolley to A.R. Sandage regarding proper motions of cepheids and the determination of the zero point of the Period-Luminosity relation.

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A letter from Sir Richard Woolley to A.R. Sandage on the question of whether the zero point of the Period Luminosity curve should be done in Visual or Blue.

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A letter from Sir Richard Woolley to A.R. Sandage regarding the progress of work on the Large Magellanic Cloud variables, NGC 6397 and Omega Centauri.

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A letter from Sir Richard Woolley to A.R. Sandage regarding plates of M67, mentioning an 1898 plate of M67 taken on the Greenwich 26-inch refractor.

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A letter from Sir Richard Woolley to A.R. Sandage regarding the blinking technique and the survey of Omega Centauri.

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A copy of a letter from S.V.M. Clube to A.R. Sandage enclosing a list of RR Lyrae variables with Delta > -30°.

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A letter from Sir Richard Woolley to A.R. Sandage of the Mount Wilson and Palomar Observatories, California, regarding the use of the Baade-Wesselink method and concerning consequent promising radii and absolute magnitudes for individual RR Lyrae stars already obtained.