Scope and Contents Correspondence with instrument manufacturers, other observatories, astronomers, inventors, etc., regarding instruments not held at the Royal Observatory, including letters asking for advice and requests to borrow or buy equipment. The papers include the following material:Miscellaneous correspondence, 1905-1937, including letters regarding plates needed for the trigonometrical surveys of India, 1909-1910; a new Evershed solar spectroscope, 1905-1906; and the renewal of an observatory...

Scope and Contents (1) Correspondence regarding Commonwealth and colonial observatories, 1911-1935, including the following material:Correspondence regarding equipment for the Mount Faber Observatory, Singapore, 1928-1930, including a transit instrument and micrometer.Correspondence concerning the closure of the Apia Observatory, Samoa, by the New Zealand Government, 1919-1935.Correspondence on the supply and testing of a 4-inch transit instrument and clock for the Colombo Observatory,...