Two hundred years ago, on 12 August 1795, King GEORGE III signed the O
rder in Council setting up the Royal Navy's Hydrographic Office. This
paper traces its growth from a handful of civilians sorting through a
collection of surveys in the Admiralty attics to the surveying and cha
rting organisation of today. It shows how chart folios, sailing direct
ions and notices to mariners were introduced, how a corps of dedicated
seaman surveyors was established, and how they and the cartographers
have served Britain and the world through 200 years of peace and war.