For slowly but steadily the Japanese lines encircled the hills with a ring of fate, creeping up the sides with infinite nimbleness and dexterity, pausing now to take cover and return the Russian fire, then up again and climbing from rock to rock with indomitable courage and resolution. On the other hand, General Kashtalinsky bravely fought on against his advancing foe. With the force at his command, it was obviously a desperate undertaking, and he had sent for reinforcements. But they came not, and for hours he had to do the best he could without them. The fact was, of course, that General Sassulitch himself was so busily engaged both on the right wing and at the centre that he could spare little assistance to his subordinate. [Sidenote: Devastating Artillery Bombardment] For almost simultaneously with the advance of the 12th Division across the Ai the Imperial Guards under General Hasegawa had forced the passage of the stream on the left, at the foot of the slope which led up to the village of Chiu-lien-cheng, while the 2nd Division, led by General Nishi, crossed lower down and menaced the Russian right. Four batteries of howitzers had been ferried across the stream from the left bank of the Yalu to the Island of Cheun-song-do, and as the skirmishing line of both divisions moved forward in a fan-like formation these powerful pieces of ordnance opened a destructive fire upon the enemy. A sharp rattle of musketry was the first sign that the Russians were prepared to contest the passage of the river in this quarter, but their field artillery remained silent, and it turned out afterwards that all the guns which had survived the bombardment of the previous day had been removed to the rear, or to strengthen General Kashtalinsky's position. As it was, the rifle fire from the trenches was very galling, and the Japanese lost a great many men, but the devastating effects of General Kuroki's artillery bombardment were beyond anything that the Russians could produce in return. [Sidenote: Black Mass of Human Figures]