The Work Remaining to be Done--General Grant Placed in Command of all the Union Armies--The Grand Campaign--Banks' Disastrous Red River Expedition--How the Union Fleet was Saved--Capture of Mobile by Admiral Farragut--The Confederate Cruisers--Destruction of the _Alabama_ by the _Kearsarge_--Fate of the Other Confederate Cruisers--Destruction of the _Albemarle_ by Lieutenant William B. Cushing--Re-election of President Lincoln--Distress in the South and Prosperity in the North--The Union Prisoners in the South--Admission of Nevada--The Confederate Raids from Canada--Sherman's Advance to Atlanta--Fall of Atlanta--Hood's Vain Attempt to Relieve Georgia--Superb Success of General Thomas--"Marching Through Georgia"--Sherman's Christmas Gift to President Lincoln--Opening of Grant's Final Campaign--Battles in the Wilderness--Wounding of General Longstreet and Deaths of General Stuart and Sedgwick--Grant's Flanking Movements Against Lee--A Disastrous Repulse at Cold Harbor--Defeat of Sigel and Hunter in the Shenandoah Valley --"Bottling-up" of Butler--Explosions of the Petersburg Mine--Early's Raids--His Final Defeat by Sheridan--Grant's Campaign--Surrender of Lee--Assassination of President Lincoln--Death of Booth and Punishment of the Conspirators--Surrender of Jo Johnston and Collapse of the Southern Confederacy--Capture of Jefferson Davis--His Release and Death--Statistics of the Civil War--A Characteristic Anecdote. THE WORK TO BE DONE. Two grand campaigns remained to be prosecuted to a successful conclusion before the great Civil War could be ended and the Union restored. The first and most important was that of General Grant against Richmond, or, more properly, against Lee, who was still at the head of the unconquered Army of Northern Virginia, and who must be overcome before the Confederate capital could fall. The second was the campaign of General Sherman, through the heart of the Southern Confederacy. Other interesting and decisive operations were to be pressed, but all were contributory to the two great ones mentioned.