On September 24, the German aviators having shown more activity than usual, French _escadrilles de chasse_ delivered on the greater part of the front veritable aerial battles. French pilots gained great successes and indisputably had the upper hand of the enemy. On the Somme front there were twenty-nine engagements; four enemy aeroplanes were brought down. One fell in the Vaux woods. Two others successively attacked by Sous-Lieutenant Guynemer came down in flames after some minutes’ fighting. Sous-Lieutenant Guynemer consequently brought down the same day his seventeenth and eighteenth aeroplanes. The fourth machine fell south of Misery. Three other German machines were seriously hit and fell wrecked near Estrees; and in the region of Péronne four enemy machines were compelled to come to earth in their own lines. It is also confirmed that one of the German aeroplanes, given as seriously hit on September 22, was brought down between Misery and Villers-Carbonnel. Farther to the south, between Chaulnes and the Avre, six German machines were brought down. One of them fell in flames near Chaulnes, in the course of an engagement between four machines and a group of six enemy machines. The second fell at Licourt, the third at Parvillers, the fourth was seen crashing to earth south of Marchelepot, the fifth and sixth were brought down by the same pilot in an engagement between one of the French squadrons and six German aeroplanes, and they fell in the region of Andechy, one of them in the French lines. In the region north of Chalons a Fokker fell in flames near the French lines, and another Fokker appeared to have been seriously hit. In the Verdun region an enemy aeroplane was fired at by machine-guns at close quarters, side-slipped, and descended on the Poivre Hill. East of St. Mihiel a Fokker nose-dived into its own lines. In Lorraine a French pilot pursued a German machine for twenty kilometres (12½ miles) into its own lines, killed the passenger, and compelled the machine to descend. Another enemy machine came down in the Forest of Gamecy. Finally, in the Vosges, two enemy aeroplanes nose-dived into their own lines in an abnormal manner after fights with French pilots.