The effect of the bombs was tremendous. The German soldiers broke headlong for cover, abandoning all thought of fight. Ten minutes later a bombplane group of the same strength arrived on the scene. At first no Germans were visible; then circling low, the airmen discovered the enemy hiding in the horseshoe wood of Hautwison on the eastern side of the valley. Again the devoted battalions were subjected to a terrible bombardment amid trees that gave no protection. Before the decimated units could re-form the first squadron had returned with a new load, and once more the wood was filled with the roar of explosions. No human morale could stand such triple strain. In vain the German officers tried to re-form their panic-stricken men. When the French infantry counterattacked they had an easy victory over the weakened forces that had made the advance. The airmen's success against the reserves had nullified an advance that might have been dangerous. GERMANS FIGHT GERMANS One of the most extraordinary episodes of recent aerial fighting was the battle waged on June 5 between two flights of German planes. It was an unintentional but disastrous fight between brother aviators, during which British pilots joyfully and impartially rendered assistance first to one side, then to the other, until so many of the German fliers had been destroyed or damaged that the conflict could not continue. According to eyewitnesses two British officers in a fighting machine were leading a patrol along the lines, when they sighted a German Halberstadt two-seater, which, upon their appearance, fired a green signal light. The British leaders expected a trap, and waited to see what this unusual performance meant. In a short time six German scouts came wheeling out of the blue and joined the Halberstadt. Almost at once six other enemy scouts dived out of the sun on their comrades, whom apparently mistook for a British patrol about to attack the Halberstadt. What happened was this: The Halberstadt had been acting as a decoy, and the green light had been meant as a signal for assistance. But there had been no expectation that two flights of German planes would respond at the same time. Not being able to distinguish the markings of their friends--and this has happened not infrequently before--the newcomers immediately began a furious attack upon them. The British leaders then guided their patrol into this mad mêlée and took a hand. The Halberstadt was the first victim, and this was shot down by a British commanding machine. Another British fighter in the meantime had accounted for two more enemy scouts, which were sent swirling to destruction. All the time the German aircraft were continuing their bitter battle among themselves, and several of them were seen to go down out of control before the engagement finally ended. The British leaders by their good judgment had led the Germans into their own trap. ATTACKS ON HOSPITALS