"I will never speak lightly of an Antarctic winter night again--I have been through one . . . ." In 1939, Admiral Richard E. Byrd led his last expedition to the Ross Ice Shelf on the continent of Antarctica. A 25-year-old geologist named Charles Passel was one of a small crew of men who took part in this mission, which included a year and a half of isolation from the rest of the world except by amateur radio operators. Passel kept a daily diary throughout...