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 Correspondence and related papers concerning magnetism, including the following material:Correspondence concerning the variation of magnetic charts and records and requests for measurements of magnetic variation, 1947.Correspondence concerning the 'New Zealand Pilot' magnetic observation spots and an extract from 'Nature' regarding 'Earth Currents in Short Submarine Cables', 1946.Correspondence concerning the amendment of the 'Red Sea and Gulf of Aden Pilot',...

Scope and Contents Correspondence and related papers concerning magnetism, including correspondence with the Carnegie Institute of Washington and the Department of Terrestrial Magnetism regarding the interchange of magnetic data; correspondence with Dr G. Swoboda, Lausanne Magnetical Observatory, regarding magnetic character numbers from the Abinger Magnetic Observatory; and quarterly summaries of days classified according to magnetic disturbances. The papers also include the following material:Letter...

Scope and Contents Correspondence and related papers concerning the R.R.S. (Royal Research Ship) 'Research'. Some of the principal items are as follows:(1) Correspondence regarding fittings and instruments for the R.R.S. 'Research'Correspondence with the Cambridge Instrument Company Ltd regarding the marine earth inductor, 1938.Correspondence regarding the collimating compass, 1938.Report on the magnetic suitability of a D'Arsonval Galvanometer submitted by the Cambridge...

Scope and Contents General correspondence relating to the Royal Society, including the following items:Correspondence, minutes of meetings and reports to committees, including the National Committee for Geodesy and Geophysics, 1948; Defence Services Research Committee, 1948-1949; Joint Permanent Eclipse Committee, 1948; National Committee for Astronomy, 1948; Gassiot Committee, 1948; International Relations Committee, 1948; British Council, 1949; Travelling Expenses Committee, 1949; and Soiree...

Scope and Contents Miscellaneous correspondence and related papers regarding physics, including the following material:Correspondence with the Royal Aircraft Factory, South Farnborough, regarding testing the action of sunlight on linen fabric, 1918.Correspondence concerning general physics, 1916-1923, relating mainly to Einstein's theories; requests for information on the 1919 Eclipse observations at Sobral, Brazil; and a report on photographs. There is also a report of the Committee of the...