Charles Berlitz, linguist and grandson of the founder of the famous language schools, lectured on "Atlantis and the Startling Underwater Bimini Discoveries."   A tireless student of the paranormal, he published The Mystery of Atlantis in 1969 and, with William Moore, The Philadelphia Experiment: Project Invisibility, which claimed that the US Navy had experimented in World War II with rendering a battleship invisible, in 1979.  His book The Bermuda Triangle (1974) won the Dag Hammarskjöld International Prize for non-fiction in 1976.