18mo, 152pp. Hardcover in brown publisher’s cloth, price-clipped d/w in very good condition with slight discolouration of edges, protectedby clear archival covering, text in excellent condition devoid of any foxing but with prior owner’s neat stamp on ffep and sticker from the original bookstore adhered inside front board. At the outbreak of WWII the British submarine flotilla had shrunk to only fifty-seven boats with twelve more under construction ie. a woefully small and barely adequate naval force, principally employed in enemy coastal and adjoining waters in adverse conditions hunting for whatever targets they could find. With the usual attention to detail seen in this series, technical data was found from official sources and includes detail of midget submarines with wide usage of general arrangement drawings given that submarines make poor photographic subjects (though numerous b/w photos are included nevertheless).