How is archeology conducted under the sea? Despite the allure of sunken treasure, there is real historical perspective to be gained by studying shipwrecks in a scientific manner. We’ll discuss the field of Nautical Archeology with two experts this hour. Dr George Bass is the founder of the Institute of Nautical Archeology at Texas AandM and a pioneer of the field. Dr. James Delgado is Executive Director of the Institute and host of National Geographic’s television program “The Sea Hunters.” They’ll both participate in a free symposium, “Shipwrecks Throughout History: From Tut to the Atomic Age,” this Saturday at the Dallas Museum of Art.