for their support, advice, and goodwill, which has continued unabated since I embarked on my Ph.D., and without which I would have lost my bearings long ago. Like the navigators who are the focus of this thesis, I have often reassessed my position and my outlook, and have made various changes of direction during my journey over the past five years, and here again I must acknowledge the help of all of those guides whose local knowledge, whether academic or geographic, has helped me to steer my course, and whose hospitality has greeted me at various ports of call: Chris Cassels, Dr. Betsy Gebhard, John and family in Emborio (Chios), Niko Laos and family in Athens and in the Mani, Ian Morrison, Haydar Namli, the Odyssey flotilla, Bill Phelps, Rob Schumacher, Ann Thomas, and all those other friends who have made my time in Edinburgh and in Greece so rewarding. In addition I am grateful to the administrators of the Hector and Elizabeth Catling Bursary, and of the George C. Scott Fund, without whose help my visits to Greece would have been far shorter and far fewer.