At many points in the region of Ostoff and Goubine, Russian troops registered local successes by very swiftly executed attacks which threatened to outflank their opponents, who were, therefore, forced to retreat in great haste. As a result of this, the Russians captured one heavy and one light battery as well as numerous cannon which had been installed in isolated locations. Upward of 3,000 prisoners fell into their hands. In Volhynia, on July 16, 1916, to the east and southeast of Svinisuky village, Russian troops under General Sakharoff broke down the resistance of the Germans. In battles in the region of Pustomyty, more than 1,000 Germans and Austrian prisoners have been taken, together with three machine guns and much other military booty. In the region of the lower Lipa the successful Russian advance continued. The Germans were making a stubborn resistance. In battles in this region the Russians took many prisoners and guns, as well as fourteen machine guns, a few thousand rifles and other equipment. The total number of prisoners taken on July 16, 1916, in battles in Volhynia, was claimed to be 314 officers and 12,637 men. The Russians also claimed to have captured thirty guns, of which seventeen were heavy pieces, and a great many machine guns and much other material. In the direction of Kirliababa, on the frontier of Transylvania, Russians have occupied a set of new positions. In the region of Riga, skirmishes on both sides have been successful for the Russians, and parts of German trenches have been taken, together with prisoners. Increased fire west and south of Riga and on the Dvina front preceded Russian enterprises. Near Katarinehof, south of Riga, considerable Russian forces attacked. Lively fighting developed here. On the Riga front artillery engagements continued throughout July 17 and 18, 1916. At Lake Miadziol, Russian infantry and a lake flotilla made a surprise attack on the Germans in the night. German airmen manifested great activity from the region south of the Dvina to the Pinsk Marshes. On the Stokhod there was artillery fighting at many places. Russian troops repulsed by artillery fire an attempt on the part of the Germans to take the offensive north of the Odzer Marsh. Owing to the heavy rains the Dniester rose almost two and one half meters, destroying bridges, buttresses and ferry-boats, and considerably curtailing military operations. On the Russian left flank, in the region of the Rivers Black and White Tscheremosche, southwest of Kuty, Russian infantry were advancing toward the mountain defiles. Southwest of Delatyn the German troops drove back across the Pruth Russian detachments which had crossed to the western bank. The Germans took 300 prisoners.