Subject Source: Local sources
Found in 1 Collection or Record:
Correspondence on instruments, 1853 - 1854
Reference Code: GBR/0180/RGO 6/166
Scope and Contents Correspondence on new techniques, requests for advice and new instruments. There are requests for transit circles from the Portuguese government, Upsala, Sweden, and Albany, U.S.A.; a description by Airy of the Greenwich transit circle; experiments with mercury and photography, including two early pictures of the Sun; improved sextants and clocks; a 'universal instrument'; and an account of the instruments used by the ancient Chinese astronomers. The correspondents include E. Dunkin,...
Dates: 1853 - 1854
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