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Papers of Sir Richard Collinson including private journals for 1836, 1850 to 1855, logs, 1843 to 1846, a remark book, 1850 to 1851, and letterbooks, 1845 to 1846 and 1850 to 1854. There is a large amount of material relating to Collinson's survey work, in particular to China and to the voyage of the ENTERPRISE. It includes numerous records of observations and calculations on navigation, magnetic variation, meteorology and tides. There is also a large body of official, semi-official and private correspondence, 1835 to 1855, together with copies of some letters and memoranda by Collinson. His correspondents included Sir Francis Beaufort (1774-1857), Hydrographer to the Admiralty, Peter la Trobe (1795-1863), Horatio T. Austin (so. 1800-1865) and John Barrow the younger (1808-1898). The only items relating to his later career are notebooks on his work for Trinity House and printed papers, mainly official publications.