Scope and Contents (1) Correspondence regarding various American observatories, 1938-1959, including correspondence with the Yale University Observatory; P. van de Kamp, Sproul Observatory, Pennsylvania; Yerkes Observatory; Carnegie Institution of Washington; G.C. McVittie, Department of Astronomy, University of Minnesota; Astronomical Department, Berkeley University; The Observatory, University of Michigan; Georgetown College Observatory; Dr James G. Baker, Professor Harlow Shapley and Dr Bart J. Bok, Harvard...

Scope and Contents (1) Correspondence regarding various American observatories, 1959-1963, including correspondence with the United States Naval Observatory, Washington; Thornton Page, Van Vleck Observatory, Wesleyan University, Connecticut; William Liller, Dr H. Shapley, Professor Donald H. Menzel and Professor Leo Goldberg, Harvard College Observatory; Peter van de Kamp, Sproul Observatory, Swarthmore, Pennsylvania; Dr I. King, University of Illinois Observatory; Dr Olin J. Eggen, Mount Wilson and Mount...

Scope and Contents Correspondence regarding star catalogues, including requests for copies of catalogues and of information from them, and correspondence with other observatory astronomers drawing attention to errors:Miscellaneous correspondence, 1917-1926, including correspondence with the Harvard College Observatory regarding Pickering's catalogue, the preparation of the Royal Observatory's 1910 catalogue and the reduction of the Paramatta catalogue. There is also a copy of Dyson's 'Analysis of the...

Scope and Contents Miscellaneous correspondence with foreign observatories: Correspondence with the Aarhus Observatory, 1936, concerning the location of the Tusculanum Observatory of Ole Rømer.Correspondence with the University of Michigan, Ann Arbor, 1926, concerning the change of name to be inserted in the 'Nautical Almanac'.Correspondence with Apia Observatory, Western Samoa, 1926-1937, concerned mainly with the observation of the total eclipse, 21-22 October 1930. There is also a...