Adolphus Washington Greely became a world celebrity almost overnight in 1884 when the six survivors of the Lady Franklin Bay Expedition under his leadership were rescued from starvation in the Arctic. Yet he was far more than the central figure of one tragic expedition. Explorer, soldier, scientist, and author, Greely was respected as an international authority on polar science from the 1880s until his death 50 years later. ... By the time he retired as a major general in 1908, he had set a record as the first soldier to enter the U.S. Army as a private and achieve a general's rank. ... Greely's particular interest early on lay in telegraphic signaling, which had proved itself during the war, and the use of meteorological reports sent by te...