By the morning of the 18th that vast army had crossed to the west side of the river, but the rebel general had not waited to receive them, but flown, without attempting to give them battle. He hastened to the city of Vicksburg, behind whose walls he found shelter. He was speedily followed by Grant, who got his army in position, placing General Sherman on the right of the line, General McPherson on the left of Sherman, and McClernand next, his command touching the river below Vicksburg. Sharp resistance was offered, and the Confederates lost ground in {196}a skirmish on the 19th, but made an onset which almost regained it for them, but the National troops checked their assault and moved to a more advantageous position. The Federal forces were nearly famished, for rations for five days had to do duty for three weeks, eked out by what they could confiscate from the people as they marched through the country, one of General Grant's first steps was to make roads in the rear of his line, so that supplies could be obtained more easily. These roads ran through swamps and miry places, where no team could force its way. [Illustration: 9205] “We are expecting an attack from Johnston. He has been laid up with the wound he received at Seven Pines, and has all the Mississippi forces under him,” Ralph's captain said to him. “Our line of defences is thrown out six or seven miles, so I hear,” answered Ralph. “We are well prepared for them.” “That is true, but we may look for an attack in our rear. McClernand reports that he has taken two forts, and is in imminent danger, and sends a request for reinforcements at once.” Ere he finished speaking, the ball was opened vigorously. {197} [Illustration: 0206] The {198}river heights were fortified strongly, earthworks rearing their heads for miles, bristling with guns, against which the Union army hurled its strength in vain. Grants purpose was to carry the works by storm, but though splendid courage was shown, and the color-bearers at many points reached the breastworks and planted flags upon them, they proved impregnable. [Illustration: 0207] When {199}Ralph saw their efforts, he could not repress his enthusiasm, but shouted--“Hurrah! Our flag is floating on the breeze. We shall soon be in the city!” His excitement was contagious, and with a ringing shout the advancing men hurled themselves vigorously against the obstructions, only to be driven back slowly but surely. “General Grant has just received a dispatch saying that McClernand has two forts of the enemy in his possession. A brigade has been sent to his aid, and firing has been resumed-Boys, at them with a will!” [Illustration: 0208]