It was certain that two birds hovering over the Grande Place were hostile things, because suddenly white puffballs burst all round them, as the shrapnel of our own guns scattered about them. But they flew round steadily in a half-circle until they were poised above our heads. It was time to seek cover, which was not easy to find just there, where masses of stonework were piled high. At any moment things might drop. I ducked my head behind a curtain of bricks as I heard a shrill “coo-ee!” from a shell. It burst close with a scatter, and a tin cup was flung against a bit of wall close to where the lanky man sat in a shell-hole. He picked it up and said, “Queer!” and then smelled it, and said “Queer!” again. It was not an ordinary bomb. It had held some poisonous liquid from a German chemist's shop. Other bombs were dropping round as the two hostile airmen circled overhead, untouched still by the following shell-bursts. Then they passed toward their own lines, and my friend in the shell-hole called to me and said, “Let's be going.” It was time to go. When we reached the edge of the town our guns away back started shelling, and we knew the Germans would answer. So we sat in a field nearby to watch the bombardment. The air moved with the rushing waves which tracked the carry of each shell from our batteries, and over Ypres came the high singsong of the enemies' answering voice. As the dusk fell there was a movement out from Vlamertinghe, a movement of transport wagons and marching men. They were going up in the darkness through Ypres--rations and reliefs. They were the New Army men of the West Riding. “Carry on there,” said a young officer at the head of his company. Something in his eyes startled me. Was it fear, or an act of sacrifice? I wondered if he would be killed that night. Men were killed most nights on the way through Ypres, sometimes a few and sometimes many. One shell killed thirty one night, and their bodies lay strewn, headless and limbless, at the corner of the Grande Place. Transport wagons galloped their way through, between bursts of shell-fire, hoping to dodge them, and sometimes not dodging them. I saw the litter of their wheels and shafts, and the bodies of the drivers, and the raw flesh of the dead horses that had not dodged them. Many men were buried alive in Ypres, under masses of masonry when they had been sleeping in cellars, and were wakened by the avalanche above them. Comrades tried to dig them out, to pull away great stones, to get down to those vaults below from which voices were calling; and while they worked other shells came and laid dead bodies above the stones which had entombed their living comrades. That happened, not once or twice, but many times in Ypres.