April 22 (Thur.) The Second Battle of Ypres (see May 24) begins; poison gas is used by the Germans for the first time; the Canadians suffer heavily. April 24 (Sat.) A second German gas attack; the Germans storm St. Julien. April 25 (Sun.) Alsace:--The French lose ground on the Hartmannsweilerkopf. April 25-26 (Sun.-Mon.) The Allies land in Gallipoli (the Battle of Cape Helles). April 27 (Tues.) The Baltic Provinces are invaded by the Germans. The British positions in Gallipoli are consolidated. The French armoured cruiser _Leon Gambetta_ is torpedoed and sunk at the entrance of the Straits of Otranto (night of 26-27). The British submarine E14 enters the Sea of Marmora. April 28 (Wed.) The German offensive is held at Ypres. Alsace:--The French retake the Hartmannsweilerkopf, the summit of which had been lost on the 25th. Gallipoli:--The First Battle for Krithia: the Allies are repulsed. An unsuccessful Turkish attack on the Suez Canal (the third). South-West Africa:--The Germans are defeated at Gibeon. French airmen raid Friedrichshafen. April 29 (Thur.) A Turkish transport is sunk by the E14 in the Sea of Marmora. April 30 (Fri.) A Zeppelin raid on East Anglia. May 1 (Sat.) The great Austro-German offensive in Western Galicia begins. In the Baltic Provinces the Germans occupy Shavli and approach Libau. The Turks attack in Gallipoli. The British destroyer _Recruit_[2] is sunk by a submarine off the Galloper lightship. Two German torpedo boats are sunk by British destroyers in the North Sea. [2] Launched 1896. The new _Recruit_ (launched Dec. 1916) was sunk on Aug. 9, 1917. May 2 (Sun.) A German gas attack at Ypres is repulsed. The Austro-Germans cross the Biala; Ciezkowice is taken. The British counter-attack in Gallipoli. May 3 (Mon.) The British line at Ypres is shortened. The Germans advance on the Eastern Front. May 4 (Tues.) Gallipoli:--The British fail in an attack at Gaba Tepe. May 5 (Wed.) The Germans recapture 'Hill 60' (see Apr. 21). South-West Africa:--Union forces occupy Karibib. May 6 (Thur.) Gallipoli:--The Second Battle for Krithia begins (see May 8). May 7 (Fri.) The _Lusitania_ is torpedoed by a German submarine off the Old Head of Kinsale; 1198 lives are lost (including 124 Americans). The British destroyer _Maori_ is sunk by a mine in the North Sea. May 8 (Sat.) A fierce German attack at Ypres. The Russians are defeated in Galicia and in the Baltic Provinces. Libau is captured by the Germans. Gallipoli:--The Second Battle for Krithia (see May 6) ends in a slight Allied advance. May 9 (Sun.) The British line is pushed back at Ypres. The British attack and gain ground (which is subsequently relinquished) near Fromelles. The Battle of Souchez begins (see July 13). Gallipoli:--Turkish trenches at Sari Bair are stormed by the Australians. May 10 (Mon.) The Germans retreat in the Baltic Provinces but continue to advance in Galicia. May 11 (Tues.)