June 18--Austrian squadron bombards Italian coast at the mouth of the Tagliamento River, but withdraws on being attacked by Italian destroyers; Austrian destroyer shells Monopoli; Austrian torpedo boat sinks Italian merchantman Maria Grecia; Italian squadron, supported by an Anglo-French contingent, bombards several islands of the Dalmatian Archipelago, doing considerable damage. June 21--Allied ships bombard Turkish batteries on Asiatic side of the Dardanelles. June 22--German warships in the Baltic Sea capture five Swedish steamers, lumber laden, bound for England; French battleship St. Louis bombards Turkish batteries on Asiatic side of the Dardanelles. June 24--British torpedo gunboat Hussar bombards the ports of Chesmeh, Lidia, and Aglelia, opposite Chios, destroying small Turkish vessels and doing other damage. June 26--Netherlands steamer Ceres is sunk by a mine in the Gulf of Bothnia, crew being saved. June 30--British torpedo boat destroyer Lightning is damaged off the east coast of England by a mine or torpedo explosion, but makes harbor; fourteen of the crew missing. July 2--A battle occurs between Russian and German squadrons in the Baltic, between the Island of Oeland and the Courland coast; after a brief engagement the German squadron, outnumbered and outmatched in strength, flees; the German mine layer Albatross is wrecked by Russian gunfire and is beached by her crew; the Russian squadron then sails northward, sighting another German squadron, which is also outmatched in strength; the German ships flee after a thirty-minute fight, a German torpedo boat being damaged; Dutch lugger Katwyk 147 is sunk by a mine in the North Sea, ten of crew being lost. July 6--Italy closes the Adriatic Sea to navigation by merchant vessels of all countries. NAVAL RECORD--SUBMARINES June 16--German submarine sinks British steamer Strathnairn off Scilly Isles, twenty-two of the crew being drowned; German submarines sink British trawlers Petrel, Explorer, and Japonica. June 17--Austrian submarine torpedoes and sinks Italian submarine Medusa, this being the first instance on record of the sinking of one undersea boat by another; German Admiralty announces the loss of the submarine U-14, her crew being captured by the British; Athens reports that a British submarine has torpedoed and sunk three Turkish transports, loaded with troops, in the Dardanelles above Nagara; German submarine sinks British steamer Trafford, crew being saved. June 18--German submarine sinks British steamer Ailsa off Scotland, crew being saved. June 19--German Admiralty states that the submarine U-29, commanded by Captain Weddigen, which was destroyed weeks ago, was rammed and sunk by a British tank steamer flying the Swedish flag, after the tanker had been ordered to stop; British Government makes an official statement that the U-29 was sunk by "one of His Majesty's ships"; German submarine sinks British steamer Dulcie, one of the crew being lost.