There are, however, cases of missing men which cannot be explained. The facts never come to light, and we can only guess what happened. They may have been buried by the enemy, or they may have been buried in the dark by some regimental burial party which could not find their discs. They may even have been buried by a shell or blown to fragments by a direct hit. We have no evidence. After the attack on Gommécourt a youth I knew had his wound dressed at the Regimental Aid post and was seen, by more than one of his chums, passing down the communication trench to the Advanced Dressing Station where I happened to be. Yet he never arrived, slight though his wound was. It was impossible for him to have got lost. His brother and I made every possible enquiry about him, but nothing ever came to light, and we both came to the conclusion that on his way down the trench he had been buried by a shell. In another case an officer was wounded and four stretcher bearers went out to bring him in. None were ever seen again, and later, when we came into possession of the ground, the body of none of them were found. It was scarcely possible for them to have been taken prisoners, and they were never reported as having been captured. We concluded, therefore, that a shell had both killed and buried them. One day a rifleman reported sick to the Doctor and was sent down the line to the Dressing Station whence he would be sent on to a Rest Camp. He was not seriously ill, and needed no escort. It was impossible for him to have wandered into the German lines, yet he never reported at the Dressing Station or anywhere else. Loss of memory is very rare, but even if that had happened to him, he could not have wandered about behind our lines without being found and arrested. No report of his burial ever reached us and we were led to the conclusion that he was killed by a shell on the way down, and in such a way that all means of identification were lost. In another case a private, wounded in the arm, was sent down the line in company with a party of stretcher bearers who were carrying a "lying case." Evidently he got separated from them in the dark, and was hit by a shell, for he never reached any dressing station, and his fate was never known. Conditions at the front are such that these mysterious disappearances must inevitably occur. Every possible arrangement which circumstances will allow is made to prevent them; but they cannot be altogether eliminated. People at home may sometimes think that more might have been done, but it is because they have no conception of the amazing conditions under which the war is carried on. Every officer and private knows that he may disappear without leaving a trace. That being so, they, if only from common prudence and the instinct of self-preservation, combine to reduce the danger to its lowest limits; but, when all has been done, war is war; and nothing can rob it of its horrors.