The five volumes that constitute Arthur Marder's iFrom the Dreadnought to Scapa Flowi represented arguably the finest contribution to the literature of naval history since Alfred Mahan. A J P Taylor wrote that 'his naval history has a unique fascination. To unrivalled mastery of sources he adds a gift of simple narrative . . . He is beyond praise, as he is beyond cavil.'brpThe five volumes were subtitled iThe Royal Navy in the Fisher Era, 1904-1919i and they are still, despite recent major contributions from Robert Massie and Andrew Gordan, regarded by many as the definitive history of naval events leading up to and including the Great War.brpThe fourth volume covers the period from Jellicoe's arrival at the Admiralty to deal with the U-boat menace until his dismissal a year later. Mounting losses brought about the introduction of the convoy system and the turn of the tide in anti-submarine warfare. The volume also looks at the beginnings of naval aviation.brpA new introduction by Barr