On the night of April 4th the gunboat _Carondelet_, Commander Henry Walke, ran down past the batteries of Island No. 10, escaping serious damage, and in the night of the 6th the _Pittsburg_ performed the same feat. With the help of these to silence the batteries on the opposite shore, Pope crossed in force on the 7th, and moved rapidly down the little peninsula. The {100} greater part of the Confederate troops that had been holding the island now attempted to escape southward, but were caught between Pope's army and an impassable swamp, and surrendered. General Pope's captures in the entire campaign were three generals, two hundred and seventy-three officers, and six thousand seven hundred men, besides one hundred and fifty-eight guns, seven thousand muskets, one gunboat, a floating battery, six steamers, and a considerable quantity of stores. [Illustration: SURRENDER OF CONFEDERATE FORCES AFTER RETREAT FROM ISLAND No. 10.] [Illustration: REAR-ADMIRAL ANDREW H. FOOTE.] [Illustration: LIEUTENANT-GENERAL LEONIDAS POLK, C. S. A.] On the very day of this bloodless victory, a little log church in southwestern Tennessee gave name to the bloodiest battle that has been fought west of the Alleghanies--Chickamauga being rather _in_ the mountains. At Corinth, in northern Mississippi, the Memphis and Charleston Railroad crosses the Mobile and Ohio. This gave that point great strategic importance, and it was fortified accordingly and held by a large Confederate force, which was commanded by Gen. Albert Sidney Johnston (who must not be confounded with the Confederate Gen. Joseph E. Johnston). His lieutenants were Gens. G. T. Beauregard, Braxton Bragg, and William J. Hardee. General Grant, who had nearly forty thousand men under his command, and was about to be joined by Gen. Don Carlos Buell coming from Nashville with as many more, proposed to move against Corinth and capture the place.