British channel directions [electronic resource] : Complete coasting directions for sailing from London through the different channels of the River Thames, the British Channel, Bristol Channel, and part of the Coast of Wales to Milford-Haven. Including the islands of Guernsey, Jersey, Alderney, &c. With particular directions for Plymouth Soud, Hamoaze, Catwater, Fowey-Harbour, Falmouth-Harbour Mount's Bay, &c. The whole from actual surveys and extensive experience, by John Chandler, of Oxford, pilot and late master in Royal Navy.