M. Mégnin, an authority on the use of dogs in warfare, says that German attacks by night on small outposts have almost completely failed since dogs have been employed to watch. The animals have a remarkably acute sense of hearing, and are able to detect the enemy at a great distance and prepare the men to receive him. Thousands of sentinels, especially in the Argonne and the Vosges, where it is difficult to see far ahead owing to the nature of the ground, have owed it to their dogs that they have not been surprised and killed or taken prisoners. In many cases they have even turned the tables on the enemy. Captain Tolet, who is in command of the kennels of the Tenth French Army, has narrated some of the brave deeds--the word is not too strong--of dogs under his care, especially during the fighting on the Somme. On August 28th a dog called Médor, although wounded by a shrapnel shell, ran a mile and a half to carry a message from a brigade to a colonel, was again wounded in the last two hundred yards, but dragged himself to the commander's post, where he died a quarter of an hour later. Another dog, Follette, in the same month, ran nearly two miles and was wounded, but nevertheless persisted in his mission, dying five days later. In a part of the Vosges a battalion of Chasseurs which utilized a particularly intelligent animal as a sentinel did not lose a single man, while a battalion which had preceded it, and which had no dog, lost seven sentries in three days. Another case of a dog's usefulness is recorded in the taking of a farm in the Bois Brûlé (Burnt Wood). Everyone thought Germans were hiding in the farm, and no patrol had ventured to approach it. At last a man went towards it at night with a dog on a leash twenty yards ahead of him. The animal showed no signs of uneasiness, and the farm was found to be empty. Telegraphists and others were thereupon able to instal themselves, and before morning the Germans' position was satisfactorily examined and an enemy redoubt smashed up.