"Explores the city's ghoulish history over more than three centuries, including Colonial-era spirits." --BU Today   It should come as no surprise that one of the nation's oldest cities brims with spirits of those who lived and died in its hundreds of years of tumultuous history. Boston, Massachusetts, boasts countless stories of the supernatural.   Many students at Boston College have encountered an unearthly hound that haunts O'Connell House to this day. Be on the watch for an actor who sits in on rehearsals at Huntington Theatre and restless spirits rumored to haunt Boston Common at night.   From the Victorian brownstones of Back Bay to the shores of the Boston Harbor Islands, author Sam Baltrusis makes it clear that there is hardly a corner of the Hub where the paranormal cannot be experienced--and shares terrifying tales of the long departed.   Includes photos