those magic words, "They shall not pass!" But the shells continued to fall in their very midst, and unless that battery could be silenced, the fort and all the men in it would be lost. What could be done when no messenger could reach the lines behind?

Suddenly, as the men were straining their eyes almost hopelessly in the direction of those lines, they saw a small, dark speck moving across the fields, stopping only here and there behind a rock to take shelter from the bursting shells. Now and then it dashed wildly over the open fields. But ever straight on toward the fort it came. Swiftly the entrance of the fort was flung open, and in dashed one of the faithful dogs, unhurt. In the wallet, fastened to his collar, was found a message telling that relief was coming. Strapped to his back was a tiny pannier, inside of which were two frightened carrier pigeons. On a slip of paper the commander quickly wrote his message: "Stop the German battery on our left." Then adding any necessary facts as to pointing the guns, he fastened the message to the trembling bird and let it loose. Straight to its home, above shot and shell, flew the pigeon. In a few moments the German battery was silenced, and Douaumont and the brave defenders were saved.

All along the lines, the dogs were busy bearing important messages back and forth from one commander to another, and from one fort to another.

Zip, an English bulldog, ran two miles in heavy shell fire and afterward had to go about with his jaw in splints; but he delivered his message and seemed anxious to get well enough to carry another. One of the other messenger dogs, it is said, carried orders almost continuously for seventy-two hours, hardly stopping to eat or drink; for no war dog would eat or drink anything given him by strangers. The faithful animals were in danger of being taken prisoners, as well as of being struck. Indeed, in one instance a heavy cannon rolled over upon a big mastiff, pinning him there until help came.

When the battle ceased, the dogs sprang from the trenches and searched the fields and woods for wounded men. They could find them much more quickly and with less danger of being seen than any Red Cross man.

In former wars among civilized peoples, the firing has always been upon armed forces, and the guns were silent after each battle to allow both sides to find and care for the wounded soldiers in the field. The Germans, however, have used the Red Cross doctors and stretcher-bearers for targets, so that to send them out only means to add them to the number wounded. But the dogs, creeping among the men, can seldom be seen by the enemy, and besides are able to find the wounded quicker and more easily. As soon as a dog finds an injured soldier, he seizes his cap, a button, or a bit of his clothing, and runs

back with it to the doctor or a Red Cross nurse, for he will give it to no one else. The stretcher-bearers then follow the dog and bring back the wounded man. Often the man may lie in a dense thicket where no one would think to look for him, but the dog, by his keen sense of smell or by hearing the deep breaths or some slight sound made by the injured man, creeps in and finds him.

Sometimes, to attract the attention of an ambulance driver, the dogs give several short, quick barks; but usually they do their work silently, for if they bark, the enemy will fire.

Many times a dog finds a man unable to get back to the lines, but not so seriously wounded- but that he can help himself somewhat. In such a case, before running for help, the dog stands quiet, close to the soldier, and allows him to take the flasks and first-aid bandages from the wallet which is hung about the dog's neck or pinned to the blanket on his back.

Thus, by the help of these faithful friends, the lives of many hundreds of men have been saved. Over one hundred were rescued in one night after a battle. A big Newfoundland, named Napoleon, had the credit of saving as many as twenty. One of the men, in speaking of him, said, "Part of his tail has been blown away, and once he was left for dead in No Man's Land, but he is still on the job, working for civilization."

When not fighting or on watch, the men in the trenches enjoy the company of the dogs and teach them to perform all sorts of tricks, the fox terriers proving especially intelligent. They also do good work in keeping the trenches free from rats.

At night, a French sentinel sometimes crawls through the entanglements on his way to a "listening post" out in No Man's Land. With him goes a sentinel dog. The sentinel's purpose is to discover if the enemy are getting ready for a surprise attack. Lying flat on the earth, or crouching in a shell hole, he listens with bated breath for any telltale noises. The dog, listening too, creeps along beside him, or slinks silently out into the darkness. He can tell, when his master cannot, if an enemy is abroad. Making no sound, giving no betraying bark, as soon as he discovers the enemy the dog draws near to his master, stands at attention, his ears pricked up, his hair bristling, his tail wagging as he silently paws the ground or growls so low that only his master can hear him. If the German soldier attempts to fight, the dog springs at him and throws him to the ground.

A group of soldiers were on watch one night in one of the front trenches, when all of the dogs suddenly became uneasy, growling low, and growing more and more excited. The soldiers knew their dogs and trusted their warnings, so they telephoned back to the main trenches for help. In less than half an hour,

`an attack was made from the German trenches opposite. Meanwhile, however, reënforcements had arrived for the Allies, which sent the enemy back to his own lines again. How the dogs knew so long before that the attack was coming, whether they could have heard the first faint signs of preparation in the enemy trenches, the soldiers could not tell.

When a front line trench of the enemy is captured, it is the faithful dogs who draw up the many cartloads of ammunition and supplies, and some of the smaller guns. For this, the Belgian dogs are especially well fitted.

Happy as long as they can help in the fighting, restless and uneasy whenever sent back to the hospitals for treatment or rest, these dogs have shown the worth of all the training they have received, as well as a great amount of natural intelligence.

Sheep

While Zip, Napoleon, Spot, Stop, Mignon, and Bouée have been doing their bit on the firing line, still others have been taking their training in readiness to go to the front. And very hard training it is. dogs, fox terriers, bulldogs, collies, St. Bernards, Newfoundlands, Alaskan wolf dogs, mongrels, - all must be carefully trained by expert dog trainers.

First they must learn to distinguish between the uniform of their country and that of the enemy. They must not bark, because then the enemy will be sure to shoot. In carrying letters from post to