Hover Boy touches give this a certain naive air but the material -- even with censorship -- on submarine activities and personnel makes a fascinating record of danger within and without. With the highest core of tonnage sunk or damaged, the Silversides' of action in enemy waters in engrossing reading. Here is the efficiency of a submarine crew, the intimacy of the confined life which leads to little of the brasshat between officers and men, the patience needed for the chance to make a kill, the kind of life that goes on cruising or in combat. There are the experiences on patrol duty, the first surface engagement, the firing of the first torpedo, experiences with Japanese nets, depth charges, ubmarines, in shipping lanes, in typhoon, stalking a convoy. There are the intricacies of repairs to be made while at men, the emergency appendectomy which was a success, the dangers of a dangling torpedo to add an extra fillip to a full cargo of excitement. There are good yarns of the men themselves, at sea or ashore, and the whole gives much information on a little known branch of the service.