All the barbed-wire entanglements in front of the first-line trenches appeared to be cut, mangled, twisted into balls, beaten back into the earth and exhumed again, leaving only a welt of crater-spotted ground in front of the chalky contour of the first-line trenches which had been mashed and crushed out of shape.

"Yes, the Boche's first line looks rather messy," said the officer. "We've been giving him an awful doing these last few days. Turning our attention mostly to the second line, now. That's our lot, there," he added, indicating a cluster of bursts over a nest of burrows farther up on the hillside.

"Any attempts to repair their wire at night?" I asked.

"No. They have to do it under our machine gun fire. Any Boches who have survived are lying doggo."

How many dugouts were still intact and secure refuges for the waiting Germans? Only trench raids could ascertain. As well might the observer with his glasses or an aeroplane looking down try to take a census of the number of inhabitants of a prairie dog village who were all in their holes.

The officer spread out his map marked "Secret and confidential," delimiting the boundaries of a narrow sector. He had nothing to do with what lay to the right and left—other sectors, other men's business—of the area inclosed in the clear, heavy lines crosswise of British and German trenches—a slice out of the front, as it were. Speaking over the telephone to the blind guns, he was interested only in the control of gunfire in this sector. The charge to him was lines on the map parallel with the trenches which would be at given points at given moments—lines which he must support when their soldier counterparts were invisible through the shell-smoke in the nice calculation of time and range which should put the shells into the enemy and never into the charging man.

To infantry commanders with similar maps those lines were breathing human lines of men whom they had trained, and the gunfire a kind of spray which the gunners were to adjust for the protection of the battalions when they should cross that dead space. Once the British were in the German front trenches, details which had been told off for the purpose were to take possession of the dugouts and "breach" them of prisoners and disarm all other Germans, lest they fire into the backs of those who carried the charge farther on to the final stage of the objective. What awaited them they would know only when they climbed over the parapet and became silhouettes of vulnerable flesh in the open. Yes, one had the system in the large and the small, by the army, the corps, the division, the brigade, the battalion, and the man, the individual infantryman who was to suffer that hazard of marching in the open toward the trenches which not guns, or motor trucks, or trench-mortar shells could take, but only he could take and hold.

The advantage of watching the attack from this O.P. in comparison with that of other points was mooted; for the spectator had to choose his seat for the panorama. This time we sought a place where we hoped to see something of the battle as a whole.

"C'est arrivé!" said the old porter to me at the door when I left the hotel before dawn. The great day had arrived!

Amiens was in darkness, with the lightnings of the guns which had never ceased their labors through the night flashing in the heavens their magnetic summons to battle. When a dip into a valley shut out their roar a divine hush lay over the world. On either side of the main road was the peace of the hour before the dawn which would send the peasants from their beds to the fields. There were no lights yet in the villages. It had not occurred to the inhabitants to try to see the battle. They knew that they would be in the way; sentries or gunners would halt them.