CHAPTER XXIII.
BURNSIDE AND ROSECRANS--THE SUMMER'S DELAYS Condition of Kentucky and Tennessee--Halleck's instructions to Burnside--Blockhouses at bridges--Relief of East Tennessee--Conditions of the problem--Vast wagon-train required--Scheme of a railroad--Surveys begun--Burnside's efforts to arrange co-operation with Rosecrans--Bragg sending troops to Johnston--Halleck urges Rosecrans to activity--Continued inactivity--Burnside ordered to send troops to Grant--Rosecrans's correspondence with Halleck--Lincoln's dispatch--Rosecrans collects his subordinates' opinions--Councils of war--The situation considered--Sheridan and Thomas--Computation of effectives--Garfield's summing up--Review of the situation when Rosecrans succeeded Buell--After Stone's River--Relative forces--Disastrous detached expeditions--Appeal to ambition--The major-generalship in regular army--Views of the President justified--Burnside's forces--Confederate forces in East Tennessee--Reasons for the double organization of the Union armies..