Second Battle of Ypres.

Sketch showing position at the Ypres salient on the morning of April 22, 1915.

Look again at the diagram. The Allied line from Steenstraate to Langemarck was held by Turcos and Spahis, French colonial troops from Algeria. Continuing the curve for 5,000 yards was the Canadian Division, consisting of three infantry brigades, in addition to artillery brigades. The first infantry brigade was in reserve, the second (8th and 5th Battalions) lay on the right, and the third (13th and 14th Battalions) on the left, next to the French. The whole division was commanded by General Alderson; Brigadier-General Turner commanded the 3rd Brigade, and Brigadier-General Curry the 2nd Brigade. The trenches, which the Canadians had taken over from the French, were badly made and very wet, and could only be improved with difficulty, as the dead had been buried in the bottoms and the sides. The 28th Division continued the line to the south-east corner of Polygon Wood, where Princess Patricia's Own were stationed. From the wood to Hill 60 the remainder of the salient was manned by the 27th Division.

Though the salient was well known to be a source of weakness, it was not strongly held by the Allies at this time. Probably the Germans were aware of the fact, for suddenly they launched a furious and determined attack against the forces holding it. The only warning which the Allies received was on the 20th, when the guns of the enemy began to bombard Ypres. Huge shells from the heaviest of guns fell in the streets, which were then thronged with citizens and our own reserves. Fifteen little children were killed at their play, and a number of the townsfolk perished amidst the ruins of their houses. Our generals understood at once the meaning of this bombardment. It was meant to block the roads to our lines on the salient, and make the work of sending forward supplies and ammunition very difficult, if not impossible. It was not meant to embarrass us at Hill 60, for we had free roads leading to that position from the west. It could only be the forerunner of an attack on that part of the salient extending from the Yser Canal to the Menin road—that is, on the portion held by the French Colonials, the Canadians, the 28th Division, and Princess Pat's. Our generals viewed the bombardment with anxiety; they knew that we were ill prepared to meet the attacks which were soon to follow.

Thursday, 22nd April, was a peaceful day, warm and sunny. A light, steady wind was blowing from the north-east. About five in the evening an aviator reported that he had seen a strange green cloud, higher than a man, surging across the open ground from the German lines towards the French trenches. It was the deadly poison gas chlorine, which when taken into the lungs sets up acute bronchitis and causes its victims to die in horrible agony. At every fifty feet or so along the German front a battery of twenty retorts had been established. The gas from these retorts had been pumped at high pressure into huge reservoirs from which pipes ran to the front trenches. When the nozzles were turned on, the deadly gas rushed out, and was carried by the wind towards the French lines. Special respirators had been served out to the German soldiers, who were waiting in readiness to take advantage of this foul blow. Never before had poison gas been used in this manner on the battlefield. The Germans were about to sound the deepest depths of their infamy and try to poison those whom they could not beat in fair fight.

Onward rolled the greenish-white cloud, across fields, through woods, and over hedgerows. Soon the Turcos in their trenches were gasping and choking and suffering unspeakable tortures. They were brave men; there was no mortal foe they were not ready to engage; but this creeping cloud that struck them down in agony was a devilish magic which they could neither understand nor resist. A horrible, unreasoning terror took possession of them, and they ran. Back they fled through the dusk, a coughing, blinded crowd, leaving behind them hundreds of their comrades gasping out their lives or lying dead with blue faces and frothy lips. Some of them fled due south towards the Langemarck road, and in the early darkness came upon the reserve battalions of the Canadians, who gazed in amazement upon their wild dark faces, their heaving chests, and speechless lips. Soon the Canadians began to feel the effects of the gas, and many of them were afflicted by a deadly sickness.

Stand to your Arms! By permission of The Sphere.

The incident pictured above occurred when the Turcos were assailed by poison gas and fled from their trenches. When the first fugitives arrived on the outskirts of Ypres, some of our reserves gathered in groups, wondering what had happened and trying to find out what was the matter. Suddenly a staff officer rode up, shouting, "Stand to your arms!" and in a few minutes the troops had fallen in and were marching to the scene of the fight. "Nothing more impressive ran be imagined than the sight of our men falling in quietly and in perfect order amid the scene of wild confusion caused by the panic-stricken refugees who swarmed along the roads, striving to flee as quickly as possible from the German menace behind them."

A great breach, four miles wide, now yawned between Steenstraate and Langemarck. On the left of the Canadians there was a huge rent, through which the Germans were preparing to advance, while their artillery pitilessly whipped the fugitives onward. The situation was dangerous in the extreme. Ypres appeared to be within the Kaiser's grasp. The Canadians were unsupported on their left; the French trenches were choked with dead and dying; and fifty French guns were in the hands of the enemy. In vain the officers strove to rally the fleeing Turcos. Meanwhile a great mob of Germans pushed through the wall of gas which was now breaking up into patches behind them, and rushed on towards Ypres. Only two miles of open country now separated them from the city of their desire.

CHAPTER XXV.