The submarines plying the Pacific not only attacked Jap ships but also were part of a skillfully organized rescue operation -- the Submarine Lifeguard League -- and fished hundreds of airmen from the sea, airmen otherwise doomed by strafer, shark or tropical sun. The danger was enormous -- for the subs were in the thick of action and, despite elaborate sea-air intercom, friendly planes constantly bombed them while they were sitting ducks for Japanese craft and land installations. The object was perhaps double-edged from a humanitarian viewpoint but its effect upon flying morale was incalculable. The stories, told in a ""you-were-there"" spirit are both harrowing and comical, ingenious and impressive -- despite a certain lack of variety. Lockwood, Vice-Admiral, USN, Ret., is the one responsible for the League, and with Col. Adamson, USAF, Ret., is co-author of Hellcats of the Sea, and the two keep the adventures at a definite human interest all the way.