...rd. Hooker's and Franklin's grand divisions would then be thrown across the river, while at the same time one of Sumner's corps (the Second) would make a feint with pontoons, etc., some miles below Fredericksburgh . The key of the whole situation is the hills in the rear of Taylor's house, a mile back from the ford, and a mile and a half below it. If we should succeed in making the heights, and taking possess...