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Background to Marine Surveying and Chart
Production of the Spralty Islands
The Major British Secret Surveys in Dangerous
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Admiralty aircraft Amboyna Cay American anchorage appeared authorities BA chart Borneo Breakers British Captain carried Chinese Commander completed concerned Confidential contained copy correct countries Cowe Dangerous Ground dated derived detailed documents doubtful East eastern edition examination exist Figure fleet French Ganges Reef Glasgow Hardy HERALD Hydrographic Office interest IROQUOIS issued Jacket Japan Japanese chart July located London March mariners Maritime matters naval navigational non-existent North Danger northern notation noted October operations original Palawan Passage Pennsylvania Pilot position previously probably produced publication published reasons records Reef reported result revised route Royal Navy Sailing Directions scale secret charts secret surveys Sheet Shoal shown shows soundings South China Sea Southern Spratly Island survey ship surveyors Tizard Bank Union Bank United USHO vessel Viper West western Wreck