Salvage from the Sea, 2nd Edition 1992 Magnetic Variation Charts British Admiralty Nautical Chart 266:

British Admiralty Nautical Chart  266: North Sea

British Admiralty Nautical Chart 457: Portland Bight is a standard nautical chart

NOAA Nautical Chart 18464: Port Townsend is a standard navigation chart used by commercial and recreational mariners alike

West Limit 0� 25'

Salvage from the Sea, 2nd Edition 1992 Magnetic Variation Charts British Admiralty Nautical Chart 266:This is in no way a textbook for expert marine salvors although that select band may well appreciate the difficulties, problems, feelings and responsibilities being explained to the blissfully unconversant general run of mariners as well as to the general run of thoughtful enquiring members of the ordinary public. For those who become absorbed in the subject (and there will be plenty), Chapter 14 specially lists further reading material and it is