The opportunity occurred three days later, when, after a very long vigil, an officer shot Little Willie, and the same evening a Howitzer battery wiped out the post for good and all.

As, when Little Willie met his end, he was just in the act of spotting the first shots for his battery, which had opened on our front line trenches, his death probably saved us some casualties, for it temporarily stopped the activities of his guns.

It was not only the number of the enemy that our snipers shot that was so important. It was often the psychological moment at which they shot them that gave their work an extra value.

In the autumn of 1915 there came high winds following frosty nights. It was clear that a heavy fall of the leaf would take place on the following days. I therefore asked, and obtained leave from the 4th Division, to which I was at the time attached, to drop instructional work, and instead to go into the trenches in order to spot enemy snipers and artillery observation officers’ posts. On my way down I called at Headquarters, where I was told that a very troublesome sniper was operating at Beaumont Hamel. This man had killed a number of our fellows. He was supposed to live in a pollarded willow, one of a row not very far from Jacob’s Ladder, which will be remembered by all who were on that front in 1915. There was on that day a certain amount of mild shelling of the communication trenches, but before the advent of gas-shells this rarely caused trouble in the daytime, except to those who had to repair the breaches. On the day in question I was alone with my batman, who, I can say, without fear of libel, shot better than he “batted,” for he had been chosen because he was a marksman. Arrived in the front line, we at once set about trying to locate the sniper. As a rule, in such a case, the enemy one seeks is taking a siesta, but this was not so now, for as soon as I looked over the parapet a bullet, striking low, knocked some dust into my eyes. At this point, you must understand, our trenches were shaped like an arm, with a crooked elbow, the crook or turn of the elbow being at the bottom of a hill. In front lay Beaumont Hamel, where in the German lines when I arrived a soldier had hung out his shirt to dry. Between us and Beaumont Hamel lay a wild piece of No Man’s Land, with some dead ground on the Beaumont Hamel side, and at the bottom of the hill the row of willows from which the sniper was supposed to operate.

As these willow trees were out of sight from the place where I had been fired at, I did not put down that shot to the sniper, whom we will call Ernst. In this I was probably wrong, as transpired later.

All that morning we tried to locate Ernst, who had four more shots at me, but all that I had learned at the end of it (when I imagine Ernst went off for a well-earned siesta) was that he was a good shot, as though obviously some distance away, he had made quite good practice. We most carefully examined the pollarded willows, and spotted one or two good snipers’ posts, especially one at the bottom of a hedge, but as far as Ernst was concerned he had all the honours.

The next day I was occupied all the morning with an enemy artillery O.P. which was destroyed by howitzer fire, and it was not till after lunch that I could turn my attention once more to Ernst.

This time I began at the bottom of the hill. There were no loopholes, so it was a case of looking over, and almost at once Ernst put in a very close shot, followed again by a second which was not so good. The first shot had cut the top of the parapet just beside my head, and I noticed that several shots had been fired which had also cut the top of the sandbags. Behind the line of these shots was a group of trees, and as they stood on slightly higher ground I crawled to them, and at once saw something of great interest. In the bole of one of the trees a number of bullets had lodged, all within a small circle. Crouching at the base of the tree, and with my head covered with an old sandbag, I raised it until I could see over the parapet fifty yards in front, and found at once that the line of these shots, and those which had struck the tree behind my head, were very nearly the same, and must have been fired from an area of No Man’s Land, behind which it looked as if dead ground existed on the enemy’s side, and probably from a large bush which formed the most salient feature of that view.

I then went back to the trenches, and warned all sentries to keep a good look-out on this bush and the vicinity. Very soon one of them reported movement in the bush. With my glass I could see a periscope about three feet above the ground in the bush, which was very thick. Being certain, as the periscope was raised so high, and as it had only just been elevated, that it was held in human hands, I collected half a dozen riflemen and my batman, and giving them the range, and the centre of the bush as a target, ordered them to open fire. On the volley the periscope flew backwards and the activities of Ernst ceased forthwith.

It was this experience of looking along the path of the enemy’s bullets that led directly to the invention for spotting enemy snipers, which I have described earlier in this chapter.