Plano de la Isla de Hongkong leventado por el Capitan Edward Belcher Abordo del Sulphur en 1841.
- Author: BELCHER, Captain Edward
- Publication place: Madrid
- Publisher: publicado en la Direccion de Hidrografia
- Publication date: 1849.
- Physical description: Engraved chart.
- Dimensions: 700 by 1020mm (27.5 by 40.25 inches).
- Inventory reference: 11891
The charts of the British Hydrographic Office were famous for their accuracy. The Office was founded in 1795 by George III, who appointed Alexander Dalrymple as the first Hydrographer to the Admiralty. The first charts were produced in 1800. Unlike the United States Coast Survey, the Hydrographic Office was given permission to sell charts to the public, and they produced a great number of sea charts covering every corner of the globe. Most of the Admiralty charts produced by the Office delineated coastline as well as high and low water marks, and recorded the depth of water as established by soundings. Thanks to the innovations of Sir Francis Beaufort, who developed the Beaufort Scale of wind strength, the British Hydrographic Office became one of the leading producers of sea charts, used all over the world.
This copy was made by the Direccion de Hidrografia, the arm of the Spanish government dealing with navigation.
We have only been able to trace two copies, one in the British Library and one in the Ministry of Culture in Madrid.