When we stepped out of the tunnel which led from Zivy cave to the center of No Man's Land, we had the misfortune to arrive in a sap--a trench leading toward the Hun lines--which sap at the moment of our arrival was being very heavily shelled by German artillery. As the sides of the sap were no more than two or three feet in height, and as the shells were dropping so close that we were continually in showers of mud from them, our party became broken up, leaving the Colonel and five of us together. Some two hundred yards on our way we stopped to rest. The Colonel and I were sitting behind a small parapet, our bodies touching, when a shell dropped beside him, pieces of it wounding him in five or six places. He pluckily insisted on going on toward our goal, but soon fell from exhaustion. The problem then was to get him back in safety, for there had been no cessation in the shelling. Fortunately this was accomplished with no other casualties, with great pluck on the Colonel's part, and some slight assistance on the part of his companions. Major P----, M.C., then took charge, and with most of the original party set out for Ulmer House. Our route this time was slightly altered by dodging the unlucky sap and going directly overland. Stepping around shellholes and keeping well away from a tank stuck in a mud hole to our right, in order to avoid the numerous shells that the Germans were pouring about it, we proceeded on our trip through the German barrage, which was somewhat scattered now. In passing it may be said that on this immediate front, because of the depth of the mud, the only assistance given by the five or six tanks to the troops was that of drawing and localizing the enemy fire to a certain extent, and so marking out areas of danger that it were well to avoid. None of them got even as far as our first objective, but remained stuck in the thick mud till they were dug out by hand. On hard ground they are no doubt dangerous weapons of war, but in this deep mud their only danger was to their occupants and to those about them. Our trip across this time was not particularly eventful. Veering this way and that to avoid the most heavily shelled bits of ground, stepping over corpses of Germans, or, what was more trying, of our own Canadian boys, saying a word of comfort to some poor wounded chaps in shellholes, we gradually and successfully made our way across the shell-devastated and conquered territory to Ulmer House. We suffered only two slight casualties, a wounded hand to the assistant adjutant, Lieutenant C----, and a bruised chest to the signaling officer, Captain G----.