Correspondence relating to the transit of Venus, 1874, including correspondence with the Hydrographer, 1868-1880; the Accountant General of the Navy, 1874-1878; the Superintendent of Contracts, 1874; the Director of Transports, the Devonport Office, the Deptford Office and the Customs House, 1874-1876; and the Stationery Office and Printing Office, 1873-1881. There is also correspondence between Captain Tupman, the Director of Transports, and Mr Baughan, 1874. The papers include diagrams of the ingress and egress of Venus.