It is not an uncommon thing for one to feel quite safe within a couple of hundred yards of an artillery concentration. That corner of a village, that edge of a shattered grove, that turn in the highway, that sunken road--keep away from them! Any kind of trench for shrapnel; lie down flat unless a satisfactory dugout is near for protection from high explosives which burst in the earth. If you are at the front and a curtain of fire is put behind you, wait until it is over or go around it. If there is one ahead, wait until another day--provided that you are a spectator. Always bear in mind how unimportant you are, how small a figure on the great field, and that if every shell fired had killed one soldier there would not be an able-bodied man in uniform left alive on the continent of Europe. By observing these simple rules you may see a surprising amount with a chance of surviving. One day I wanted to go into the old German dugouts under a formless pile of ruins which a British colonel had made his battalion headquarters; but I did not want to go enough to persist when I understood the situation. Formerly, my idea of a good dugout--and I always like to be within striking distance of one--was a cave twenty feet deep with a roof of four or five layers of granite, rubble and timber; but now I feel more safe if the fragments of a town hall are piled on top of this. The Germans were putting a shell every minute with clockwork regularity into the colonel's "happy home" and at intervals four shells in a salvo. You had to make a run for it between the shells, and if you did not know the exact location of the dugout you might have been hunting for it some time. Runners bearing messages took their chances both going and coming and two men were hit. The colonel was quite safe twenty feet underground with the matting of débris including that of a fallen chimney overhead, but he was a most unpopular host. The next day he moved his headquarters and not having been considerate enough to inform the Germans of the fact they kept on methodically pounding the roof of the untenanted premises.