A new edition of Winchester's globe-trotting account of scattered, mostly oceanic, outposts of the British Empire: Hong Kong (no longer), Diego Garcia, Tristan de Cunha, St. Helena, Ascension, Pitcairn, Antarctica (arguably) and the Falkland Islands. Winchester shows his usual flair for anecdote and telling detail, interweaving his own prodigious travels with a history of the British Empire.  (GBR569, $13.95)