JEAN MATHIEU DE CHAZELLES (1657-1710), French hydrographer, was born at Lyons on the 24th of July 1657.
1797), the hydrographer; Malcolm Laing (1762-1818), author of the History of Scotland from the Union of the Crowns to the Union of the Kingdoms; Mary Brunton (1778-1818), author of Self-Control, Discipline and other novels; Samuel Laing (1780-1868), author of A Residence in Norway, and translator of the Heimskringla, the Icelandic chronicle of the kings of Norway; Thomas Stewart Traill (1781-1862), professor of medical jurisprudence in Edinburgh University and editor of the 8th edition of the Encyclopaedia Britannica; Samuel Laing (1812-1897), chairman of the London, Brighton & South Coast railway, and introducer of the system of "parliamentary" trains with fares of one penny a mile; Dr John Rae (1813-1893), the Arctic explorer; and William Balfour Baikie (1825-1864), the African traveller.
Another brother was Alexander Dalrymple (1737-1808), the first admiralty hydrographer, who distinguished himself in the East India Company's service and as a geographer.
The Hydrographic Department of the British Admiralty, established in 1795, undertakes the making of charts for the admiralty, and is under the charge of the hydrographer to the admiralty (see Chart).
MATTHEW FONTAINE MAURY (1806-1873), American naval officer and hydrographer, was born near Fredericksburg in Spottsylvania county, Virginia, on the 24th of January, .1806.