Correspondence and related papers concerning the Nautical Almanac Office, including the following material:

(1) Staff and equipment

Monthly statements by H.G. Scott Barrett of outside work done for the N.A.O., 1943-1945.

Correspondence between D.H. Sadler and Sir Harold Spencer Jones regarding the increased accuracy in the transit of the first point of Aries, 1940.

Correspondence regarding unestablished service counting for superannuation purposes, 1940.

Correspondence with the Hydrographer of the Navy regarding N.A.O. staff liable for military service, 1940.

Correspondence with D.H. Sadler regarding staff and work at the N.A.O., 1940.

Correspondence with the Admiralty regarding the transfer of the N.A.O. to Devonport House, 1939.

Correspondence between the Hydrographer and H. Spencer Jones regarding the tenancy of the accommodation of the Seamen's Hospital Society in Devonport House, 1939.

Correspondence regarding salary scales, 1939.

Correspondence with the Hydrographer listing the increase in the responsibilities of the N.A.O., 1938.

General correspondence regarding staff and salaries, 1938.

Correspondence with the Hydrographer regarding the relationship between the Royal Observatory and N.A.O., 1937.

Particulars of the candidates to be interviewed by the Selection Board for appointment to the post of Assistant, 1937.

Correspondence regarding the reorganisation of the N.A.O., 1937.

Correspondence regarding appointments at the N.A.O., 1934.

Draft report on the N.A.O., 1930.

Letter appointing Dr Comrie as Superintendent, 1930.

(2) Temporary staff

Correspondence regarding the appointment of temporary staff, 1942-1947, including the following material:

Memorandum on immediate staff requirements, 1945.

Correspondence on the suggested appointment of W.E. Candler, 1945.

Correspondence between D.H. Sadler and H. Spencer Jones, 1944.

(3) Miscellaneous correspondence

Correspondence regarding staff from the N.A.O. gaining experience of navigational problems on surveying ships, 1948.

Correspondence between D.H. Sadler and H. Spencer Jones regarding the apparent change in the rate of rotation of the Earth around the middle of September 1945.

Correspondence with Count Potocki of Montalk regarding astrology, 1939.

Correspondence of Sir H. Spencer Jones regarding publications received by the N.A.O., 1938.

Correspondence with D.H. Sadler regarding the National Accounting Machine, 1937.

Notes on the Occultation Machine, 1937.

Correspondence with the Science Museum, 1937.