and their dispatches to Grant and to the Secretary of War give a
clear and vivid picture of the situation. [Footnote: Official
Records, vol. xxxi. pt. i. pp. 258, etc; pt. iii. pp. 146, 154.]
Burnside clearly saw the importance of making his stand at
Knoxville, and proposed to fortify that place so that he could stand
a siege there. [Footnote: Burnside to Willcox, _Id_., p. 177. B.'s
Report, _Id_., pt. i. p. 273.] He proposed to draw back slowly from
the Holston at Loudon, tolling Longstreet on and getting him beyond
supporting distance of Bragg. When Grant should have disposed of the
weakened enemy in his front, he could easily drive Longstreet out of
East Tennessee into Virginia. Grant approved without qualification
the course taken by Burnside. [Footnote: Grant to Burnside, _Id_.,
pt. iii. p. 177.] During the siege which followed, there was a good
deal of solicitude about Burnside, but it should be remembered in
justice to him that his own confidence never faltered and was fully
justified by the result.

Prior to the visit of Wilson and Dana he had sent his engineer,
Captain O. M. Poe, to Loudon to remove the pontoon bridge before the
occupation of the south bank of the Holston by the enemy should make
it impossible to save it. The bridge had been made of unusually
large and heavy boats, and it was a difficult task to haul them out
of the water and drag them half a mile to the railway. The south end
of the bridge was loosened and the whole swung with the current
against the right bank, where the dismantling and removal of the
boats was successfully accomplished under the eyes of a cavalry
force of the enemy which watched the performance from the opposite
bank. The bridge was carried to Knoxville and laid across the
Holston there. Its size and weight proved to be great points in its
favor for the special use there, and it was of inestimable value