General Floyd surmised the killed and wounded to be fifteen hundred. Pillow estimated them at two thousand. The National loss was, in McClernand's division, 1,445 killed and wounded, and 74 missing; in C.F. Smith's division, 306 killed, 1,045 wounded, and 167 missing; and in Lewis Wallace's division, 39 killed, 248 wounded, and 5 missing--making an aggregate of 3,329 killed, wounded, and missing. General Grant sat down before the place Wednesday the 12th, at noon, with 15,000 men, and with that number closed in upon the works and made vigorous assaults next day. Reinforcements began to arrive at the landing Thursday evening, and when the place surrendered his army had grown by reinforcements to twenty-seven thousand. Grant had no artillery but the eight field-batteries which he brought over from Fort Henry to Donelson. These were not fixed in position and protected by earthworks, but were moved from place to place and used as batteries in the field. The defensive line from Columbus to Bowling Green, broken by the capture of Fort Henry, was now shattered. General A.S. Johnston evacuated Bowling Green on February 14th, and on the 17th and 18th moved with the main body of his troops from Nashville to Murfreesboro. The rear-guard left Nashville on the night of the 23d, and the advance of Buell's army appeared next morning on the opposite bank of the river. Columbus was evacuated shortly after. The National authority was re-established over the whole of Kentucky, the State of Tennessee was opened to the advance of both army and fleet, and the Mississippi was cleared down to Island Number Ten.