Secret Hydrographic Surveys in the Spratly Islands

Admiralty Amboyna Cay American anchorage appeared authorities BA chart Breakers British Captain Chinese Commander completed concerned Confidential contained copy Cornwallis correct countries 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 miles Mischief Reef naval navigational non-existent North Danger northern notation noted October operations original Palawan Passage Pennsylvania Pilot Portion 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 West western Wreck