April 4—German submarine sinks British steamer City of Bremen in the English Channel, four of the crew being drowned; German submarine sinks a Russian bark in the English Channel; three German steamers are sunk by mines in the Baltic, 25 men being drowned; Turkish armored cruiser Medjidieh is sunk by a Russian mine; it is learned that an Austrian steamer with 600 tons of ammunition aboard was blown up by a mine in the Danube on March 30, 35 of the crew being drowned; it is learned that the American steamer Greenbriar, lost in the North Sea a few days ago, was sunk by a mine.
April 5—A Turkish squadron sinks two Russian ships; Turkish batteries off Kum Kale sink an allied mine sweeper; an Athens report says that the British battleship Lord Nelson, recently stranded in the Dardanelles, has been destroyed by the fire of the Turkish shore guns; British trawler Agantha is sunk by a German submarine off Longstone, the crew being subjected to rifle fire from the submarine while taking to the boats; German submarine U-31 sinks British steamer Olivine and Russian bark Hermes, the crews being saved; German Baltic fleet, returning from bombardment of Libau, is cut off from its base by German mines, which have gone adrift in large numbers because of a storm.
April 6—A German submarine is entangled in at net off Dover specially designed for the catching of submarines; Stockholm reports that the Swedish steamer England has been seized by the Germans in the Baltic and taken to a German port.
April 7—United States Government, at request of Commander Thierichens, takes over for internment the German converted cruiser Prinz Eitel Friedrich, to hold her until the end of the war; German Admiralty admits loss of submarine U-9, already reported by the British as being sunk.
April 8—French sailing ship Chateaubriand is sunk by a German submarine off the Isle of Wight, the crew being saved.
April 9—British and French cruisers have taken from Italian mail steamers 2,300 bags of outgoing German mail, and it is planned to seize bags from abroad intended for Germany.
April 10—British steamer Harpalyce, which made one voyage as a relief ship with supplies for the Belgians donated by residents of New York State, is sunk in the North Sea by a submarine; some of her crew are missing.
April 11—German auxiliary cruiser Kronprinz Wilhelm anchors at Newport News, needing coal and provisions; Captain Thierfelder reports that his ship has sunk fourteen ships of the Allies and one Norwegian ship; allied fleet is bombarding Dardanelles forts from the Gulf of Saros; French steamer Frederic Franck, after being torpedoed by a German submarine in the English Channel, is towed to Plymouth.
April 12—United States State Department is notified by Ambassador Page that the British Government will settle the case of the American steamship Wilhelmina in accordance with the contentions of the owners of the cargo; the British state that they will requisition and pay for the cargo, and the owners of both ship and cargo will be reimbursed for the delay caused in sending the case before a prize court; Captains of the American steamers Navajo, Joseph W. Fordney, and Llama appeal to American Embassy at London to procure their release from British marine authorities at Kirkwall; British collier Newlyn is damaged by an unexplained explosion off the Scilly Islands, but makes port; a French battleship, assisted by French aeroplanes, bombards the Turkish encampment near Gaza.
April 13—British torpedo boat destroyer Renard dashes up the Dardanelles over ten miles at high speed on a scouting expedition.