Our escadrilles had done their duty as scouts before the attack. After it began, they were overwhelmed and numerically unable to perform all the aerial missions required. The fighting enemy escadrilles, with their new series of machines and their improvements, won for a few days the complete mastery of the air. Our own airplanes were forced off the battle-field, and driven from their landing-places by cannon. Meanwhile the Verdun battle was changing its character. General Petain, who took command on February 26, restored the order which had been compromised by the bending of the front, and established the new front against which the Germans hurled their forces. It was also necessary for him to reconquer the mastery of the air. He asked for and obtained a rapid concentration of all the available escadrilles, and demanded of them vigorous offensive tactics. To economize and cooerdinate strength, all the fighting escadrilles at Verdun were grouped under the sole command of Major de Rose. They operated by patrols, sometimes following very distant itineraries, and attacking all the airplanes they met. In a short time we regained our air supremacy, and our airplanes which were engaged in regulating artillery fire and in taking aerial photographs could work in safety. Their protection was assured by raids even into the German lines. The Storks Escadrille, then, flew in the direction of Verdun. In the course of the voyage, Guynemer brought down his eighth airplane, which fell vertically in flames. This was a good augury. Hardly had he arrived on March 15 when he began to explore the battle-field with his conqueror's eyes. The enemy at that time still thought himself master, and dared to venture within the French lines. Guynemer chased, over Revigny, a group of five airplanes, drove another out of Argonne, and while returning met two others, almost face to face. He engaged the first one, tacking under it and firing from a distance of ten meters. But the adversary answered his fire, and Guynemer's machine was hit: the right-hand rear longitudinal spar was cut, the cable injured, the right forward strut also cut, and the wind-shield shattered. The airman himself was wounded in the face by fragments of aluminum and iron, one lodging in the jaw, from which it could never be extracted, one in the right cheek, one in the left eyelid, miraculously leaving the eye unhurt, while smaller fragments peppered him generally, causing hemorrhages which clogged his mask and made it adhere to the flesh. In addition, he had two bullets in his left arm. Though blinded by blood, he did not lose his sang-froid, and hastily dived, while the second airplane continued firing, and a third, furnished with a turret, which had come to the rescue of its comrades, descended after him and fired down upon his machine. Nevertheless, he had escaped by his maneuver, and in spite of his injuries made a good landing at Brocourt. On the 14th he