While the Battle of Tchartorysk was raging, engagements of varying importance and extent, but all of great severity and costly to victor and vanquished alike, took place at other parts of the Volhynian, Galician, and Bessarabian front. Just south of Tchartorysk, near Kolki on the Styr, Austrian troops gained additional territory on October 7, 1915. Still farther south at Olyka, west of Rovno, the Russians were thrown back by a bayonet attack, carried out by two Austro-Hungarian infantry regiments. On the Ikwa, northwest of Kremenets, a very bitter struggle ensued for the village of Sopanov, which during one day, October 7, 1915, changed hands not less than four times, but finally remained in the possession of Austro-Hungarian forces west of Tarnopol. Russian attacks gained temporary successes, which were lost again when German and Austro-Hungarian reenforcements were brought to their assistance. On October 8, 1915, these attacks were not only repeated, but new attacks developed on the Strypa at Buczacz, Tluste, and Burkanov, which, however, were all repulsed. During these two days the Russians lost over 6,000 men on the Styr and Strypa Rivers. Again, on October 9-10, 1915, the Russians attacked along these two waterways and on the Ikwa. On the latter day four separate attacks were launched at Burkanov alone. On the 14th another attempt was made to break through the line west of Tarnopol. Then a period of comparative rest set in for about a week. But on October 20, 1915, a new Russian attack near Novo Alexinez, a small border village, resulted in a slight gain, which, however, could not be enlarged in spite of heroic efforts. An attack east of Zaloshe on the Sereth was likewise without success. Both of these were repeated on October 21-22, 1915, without better results. During the next week the fighting was reduced considerably in volume and severity, until on October 30, 1915, a new attack with replenished forces against the Strypa line started the ball rolling once more. On the same day a Russian aeroplane was brought down southeast of Lutsk. According to official figures published by the General Staffs of the German and Austro-Hungarian armies respectively, the Russian losses during the month of October, 1915, amounted to 244 officers, 41,000 men, 23 cannon, and 80 machine guns, all captured by German forces, and 142 officers, 26,000 men, 1 cannon, 44 machine guns, and 3 aeroplanes captured by the Austro-Hungarian troops. Corresponding figures for the armies of the Central Powers are not available.