Correspondence with the Admiralty regarding staff; lists of addresses and telephone numbers of staff working for the Hydrographic Department; reports by the Hydrographer on surveys carried out by H.M. Naval Surveying Service, and on the work of the Hydrographic Department for the years 1949-1951; and a memorandum from the Hydrographer to the Astronomer Royal regarding the publication of scientific and technical papers, 1952. There is also correspondence between 'The Jewish Fund for Soviet Russia' and Sir Frank Dyson, 1943, regarding the visit of Professor Solomon Mikhoels and Colonel Hzik Feffer to England.