Correspondence regarding finance and equipment for observing eclipses, including the following material:

(1) General correspondence

Correspondence between R. Atkinson and Dr M.R. Madwar, Helwan Observatory, Egypt, 1950, regarding the programme for the eclipse of 1952.

Correspondence with Professor Stratton, 1950, regarding the eclipse of 1952.

Correspondence with Professor H.A. Bruck, 1950, regarding the loan of an 8-inch coelostat for the eclipse in 1952.

Climatological report from the Sudan Meteorological Service, 1950.

Minutes of the Joint Permanent Eclipse Committee, 10 November 1950.

List of the sites for observing the total eclipse of 25 February 1952, compiled 1950.

Correspondence between R. Atkinson and Sir Harold Spencer Jones regarding finance for the eclipse programme, 1950.

Minutes of the Joint Permanent Eclipse Committee, 24 March 1950.

Correspondence with the Naval Research Laboratory, 1950, regarding the solar eclipse of 12 September 1950 and sunspots, 11-12 September 1950.

Correspondence between R. Atkinson and C.B. Watts regarding formulae for the differential correction of librations and lunar limb profiles, 1950.

Detailed meteorological data from the Helwan Observatory, 1950, relating to the 1952 eclipse.

'Investigation of Radio Emission from the Sun During the total Solar Eclipse of May 20, 1947', by S.E. Haikin and B.M. Chikhachev, 1949.

Correspondence with C.E. Hesthal, 1949, regarding a photograph of Comet 1948 L close to the totally eclipsed Sun on 1 November 1947.

Correspondence regarding R. Atkinson's visit to Kenya for the eclipse of 1 November 1948 and concerning a new eclipse technique, 1948.

Report on suggested radio observations during the solar eclipse of 1948.

Correspondence regarding compensation for Dr A. Hunter due to an aircraft crash at Dakar, 1947.

Correspondence with the British Legation, Asuncion, and the Stockholm Observatory regarding the total eclipse of the Sun of 20 May 1947.

Airmail letter from the Broadcasting Department, Gold Coast, regarding the total solar eclipse, 1947.

Correspondence with R.H. Stoy regarding the 1940 solar eclipse instruments, 1946, including a list of instruments for shipment to Greenwich.

Correspondence with A. Mikhailov, Moscow, regarding an eclipse, 1945.

(2) Glass prisms

Correspondence with Adam Hilger Ltd regarding glass prisms, including a leaflet on Muller Vacuum Thermoelements, 1938.

Correspondence with Ross Ltd regarding quotations for 60° and 30° prisms, 1935.

Correspondence of R.O. Redman, Solar Physics Observatory, with R. Woolley, regarding prisms, 1935.

(3) Portable mounting for the 13-inch astrographic telescope

Correspondence between J. Jackson and H. Spencer Jones regarding the portable mounting for the 13-inch astrographic telescope, 1940.

Correspondence with J. Jackson regarding eclipse expenses, 1940.

Correspondence with Sir Howard Grubb, Parsons and Co. Ltd regarding the field mounting for the telescope, 1940.

(4) Solar eclipse of 1940

Correspondence with Hogg, Robinson and Chapel-Care Ltd regarding the shipment and insurance of equipment for Cape Town, including insurance policies and H.M. Customs and Excise Shipping Bills (duplicates) for the total eclipse, 1940.

(5) Eclipse accounts

Lists for the Field Equatorial and contents of cases listed, 1940.

Correspondence with H. Spencer Jones, 1940, regarding the expenses incurred in South Africa in the observation of the eclipse of the 1 October.

Correspondence with J. Jackson regarding the eclipse of 1940.

Correspondence with Dr A. Thackeray regarding Hill's quartz spectrograph, 1940.

Correspondence with R. Woolley regarding the finance and equipment of the 1940 Commonwealth Eclipse Expedition.

Correspondence with H. Knox-Shaw and J.A. Carroll, University of Aberdeen, regarding equipment for the 1940 eclipse expedition.

Correspondence with Dr van der Bilt regarding the 1940 eclipse in South Africa, 1939.

Correspondence regarding the financing of the Cape-Radcliffe Expedition to Calvinia, 1939.

Ccorrespondence with J. Jackson, Cape of Good Hope, regarding the effect the outbreak of war would have on the eclipse expedition from England, 1939.

Correspondence with J. Jackson regarding arrangements for the 1940 eclipse, 1939.

Correspondence with Adam Hilger Ltd regarding the spectroscope slit, 1938.

Proposed programme for the total solar eclipse of 1 October 1940, compiled 1938.

Draft report of Commission 13, on eclipses, 1938.

Papers showing the star field for the eclipse of 1 October 1940, compiled 1938.

Proposed spectroscopic programme for the South African eclipse of 1940, compiled 1938.