_April_ 22.--Furious attack upon the French and {112} Canadians. Germans gain several miles of ground, eight batteries of French guns, and four heavy British guns by the use of poison-gas. The Canadians stand firm. _April_ 23.--Canadians hold the line. Furious fighting. French begin to re-form. Reserves from the Twenty-seventh and Twenty-eighth British Divisions, 13th Brigade, and cavalry buttress up the line. _April_ 24.--Desperate fighting. Line pushed farther back, and Germans took about a thousand prisoners. Line never broken. _April_ 25.--Battle at its height. 50th Northern Territorial Division come into the fight. 10th Regular Brigade come up. Canadians drawn out. The French advancing. _April_ 26.--11th Regular Brigade thrown into the fight. Also the Lahore Division of Indians. Trenches of Twenty-eighth Division attacked. _April_ 27.--The French made some advance on the left. There was equilibrium on the rest of the line. Hard fighting everywhere. _April_ 28.--The enemy still held, and his attack exhausted for the moment. French made some progress. _May_ 1.--British 12th Brigade came into line. _May_ 2.--Renewed German assault on French and British, chiefly by gas. Advance held back with difficulty by the Fourth Division. _May_ 3 and 4.--Contraction of the British position, effected without fighting, but involving the abandonment of two miles of ground at the north-eastern salient. _May_ 5.--German attack upon Fourth Division. _May_ 6.--Attack still continued. {113} _May_ 7.--Artillery preparation for general German attack. _May_ 8.--Furious attack upon Fourth, Twenty-eighth, and Twenty-seventh British Divisions. Desperate fighting and heavy losses. The British repulsed the attack on their left wing (Fourth Division), but sustained heavy loss on centre and right. _May_ 9.--Very severe battle continued. British left held its ground, but right and centre tended to contract. _May_ 10.--Fighting of a desperate character, falling especially upon the Twenty-seventh Division. _May_ 11.--Again very severe fighting fell upon the Twenty-seventh Division on the right of the British line. Losses were heavy, and there was a slight contraction. _May_ 12.--Readjustment of British line. Two divisions of cavalry put in place of Twenty-eighth Division. Furious artillery attack, followed by infantry advance. Cavalry and Twenty-seventh Division terribly punished. Very heavy losses, but the line held. Fourth Division fiercely engaged and held its line. _May_ 13.--The Germans exhausted. The attack ceased. Ten days of mutual recuperation.