Importance of unity in command--Inevitable difficulties in a double organization--Burnside's problem different from that of Rosecrans--Co-operation necessarily imperfect--Growth of Grant's reputation--Solid grounds of it--Special orders sent him--Voyage to Cairo--Meets Stanton at Louisville--Division of the Mississippi created--It included Burnside's and Rosecrans's departments--Alternate forms in regard to Rosecrans--He is relieved--Thomas succeeds him--Grant's relations to the change--His intellectual methods--Taciturnity--Patience--Discussions in his presence--Clear judgments--His "good anecdote"--Rosecrans sends Garfield to Washington--Congressman or General--Duplication of offices--Interview between Garfield and Stanton--Dana's dispatches--Garfield's visit to me--Description of the rout of Rosecrans's right wing--Effect on the general--Retreat to Chattanooga--Lookout Mountain abandoned--The President's problem--Dana's light upon it--Stanton's use of it--Grant's acquiescence--Subsequent relations of Garfield and Rosecrans--Improving the "cracker line"--Opening the Tennessee--Combat at Wauhatchie.

[CHAPTER XXVIII]

SIEGE OF KNOXVILLE--END OF BURNSIDE'S CAMPAIGN

Departments not changed by Grant--Sherman assigned to that of the Tennessee--Burnside's situation and supplies--His communications--Building a railroad--Threatened from Virginia--His plans--Bragg sends Longstreet into East Tennessee--Their cross-purposes--Correspondence of Grant and Burnside--Dana and Wilson sent to consult--Grant approves Burnside's course--Latter slowly retires on Knoxville--The place prepared for a siege--Combat at Campbell's station--Within the lines at Knoxville--Topography of the place--Defences--Assignment of positions--The forts--General Sanders killed--His self-sacrifice--Longstreet's lines of investment--His assault of Fort Sanders--The combat--The repulse--The victory at Missionary Ridge and results--Division of Confederate forces a mistake--Grant sends Sherman to raise the siege of Knoxville--East Tennessee a "horror"--Longstreet retreats toward Virginia--Sherman rejoins Grant--Granger's unwillingness to remain--General Foster sent to relieve Burnside--Criticism of this act--Halleck's misunderstanding of the real situation--Grant's easy comprehension of it--His conduct in enlarged responsibility--General Hunter's inspection report.

[CHAPTER XXIX]

AFFAIRS IN DISTRICT OF OHIO--PLOT TO LIBERATE PRISONERS AT JOHNSON'S ISLAND

Administrative duties--Major McLean adjutant-general--His loyalty questioned--Ordered away--Succeeded by Captain Anderson--Robert Anderson's family--Vallandigham canvass--Bounty-jumping--Action of U. S. Courts--of the local Probate Court--Efforts to provoke collision--Interview with the sheriff--Letter to Governor Tod--Shooting soldiers in Dayton--The October election--Great majority against Vallandigham--The soldier vote--Wish for field service--Kinglake's Crimean War--Its lessons--Confederate plots in Canada--Attempt on military prison at Johnson's Island--Assembling militia there--Fortifying Sandusky Bay--Inspection of the prison--Condition and treatment of the prisoners.

[CHAPTER XXX]

A WINTER RIDE ON THE CUMBERLAND MOUNTAINS

Ordered to East Tennessee--Preparation for a long ride--A small party of officers--Rendezvous at Lexington, Ky.--Changes in my staff--The escort--A small train--A gay cavalcade--The blue-grass country--War-time roads--Valley of the Rockcastle--Quarters for the night--London--Choice of routes-Longstreet in the way--A turn southward--Williamsburg--Meeting Burnside--Fording the Cumberland--Pine Mountain--A hard pull--Teamsters' chorus--Big Creek Gap--First view of East Tennessee--Jacksboro--A forty-mile trot--Escape from unwelcome duty--In command of Twenty-third Corps--The army-supply problem--Siege bread--Starved beef--Burnside's dinner to Sherman.