May 23--Repeated reports keep coming from Copenhagen that the German naval authorities admit the loss of seventeen submarines since the opening of the war. May 24--An allied submarine sinks Turkish gunboat Pelenk-i-Deria. May 25--British battleship Triumph is sunk in the Dardanelles by a German submarine, going down in seven minutes; 56 men are lost; the Triumph was built in 1904 and cost $4,750,000. May 26--A British submarine has sunk a Turkish gunboat in the Sea of Marmora within sight of Constantinople. May 27--German submarine torpedoes and sinks British battleship Majestic off Sedd-el-Bahr; 49 men are lost; Majestic was completed in 1895 and belonged to the oldest type of battleship in commission in British Navy; British Admiralty announces that submarine E-11 has sunk a large Turkish munition ship, while she caused a small storeship to run ashore; also that E-11 entered Constantinople harbor and discharged a torpedo at a transport alongside the arsenal; British steamer Cadeby is sunk off the Scilly Islands by gunfire from a German submarine; crew saved. May 28--The torpedoing of the American tanker Gulflight is now established in Germany as having been due to a German submarine, the report of the submarine's Captain having been received by the German Admiralty; he reports that when he saw the Gulflight she was being convoyed by two patrol boats, and he concluded she must be British or was carrying contraband; British steamer Spennymoor is sunk by a German submarine off the Orkney Islands, six men being drowned; British steamer Tullochmoor is shelled and sunk by a German submarine, crew being saved; British steamer Glenlee is sunk by a German submarine, crew being saved; Portuguese steamer Cysne is sunk by a German submarine off Cape Finisterre, crew being saved; German submarine U-24 sinks British steamer Ethiope in the English Channel; fifteen of crew are missing. May 29--British steamer Dixiana is sunk by a German submarine, which is disguised with sails; crew saved. May 31--Danish steamer Soborg is sunk by a German submarine in the English Channel; crew saved. June 1--British steamer Saidieh, carrying passengers, is torpedoed without warning in the North Sea by a German submarine and sinks in fifteen minutes; seven of the crew, including a stewardess, are lost; Welsh trawler Victoria is sunk by a German submarine, several of the crew being killed by shell fire. June 2--British submarine torpedoes a large German transport in the Sea of Marmora; German submarines sink the Norwegian steamer Cubano and the Welsh trawler Hiorld, the crews being saved; Danish schooner Salvador is sunk by a German submarine, crew saved.