CHAPTER LVI.
LEFT FLANK MOVEMENT ACROSS THE CHICKAHOMINY AND JAMES--GENERAL LEE -- VISIT TO BUTLER--THE MOVEMENT ON PETERSBURG--THE INVESTMENT OF PETERSBURG.
Lee's position was now so near Richmond, and the intervening swamps of the Chickahominy so great an obstacle to the movement of troops in the face of an enemy, that I determined to make my next left flank move carry the Army of the Potomac south of the James River.

(*34) Preparations for this were promptly commenced.

The move was a hazardous one to make: the Chickahominy River, with its marshy and heavily timbered approaches, had to be crossed; all the bridges over it east of Lee were destroyed; the enemy had a shorter line and better roads to travel on to confront me in crossing; more than fifty miles intervened between me and Butler, by the roads I should have to travel, with both the James and the Chickahominy unbridged to cross; and last, the Army of the Potomac had to be got out of a position but a few hundred yards from the enemy at the widest place.

Lee, if he did not choose to follow me, might, with his shorter distance to travel and his bridges over the Chickahominy and the James, move rapidly on Butler and crush him before the army with me could come to his relief.

Then too he might spare troops enough to send against Hunter who was approaching Lynchburg, living upon the country he passed through, and without ammunition further than what he carried with him.
But the move had to be made, and I relied upon Lee's not seeing my danger as I saw it.