However he might have disposed his forces for an attack on Saturday afternoon, he could have committed no mistake as great as the half-way measures which have been narrated. And if the heavy fighting of Sunday had been done the day before with any thing like the dispositions suggested, it could have scarcely failed of brilliant success for the Army of the Potomac. But six o'clock came: Hooker still lay listlessly awaiting an attack, with his forces disjointedly lodged, and with no common purpose of action; and Jackson had gathered for his mighty blow. It is but fair to give weight to every circumstance which shall moderate the censure attributable to Hooker for his defeat in this campaign. Early in the morning, after his inspection of the lines on the right, which was made with thoroughness, and after receipt of the first news of the movement of troops across our front, Hooker issued the following circular:-- HEADQUARTERS ARMY OF THE POTOMAC, CHANCELLORSVILLE, VA., May 2, 1863, 9.30 A.M. MAJOR-GEN. SLOCUM AND MAJOR-GEN. HOWARD. I am directed by the major-general commanding to say that the disposition you have made of your corps has been with a view to a front attack by the enemy. If he should throw himself upon your flank, he wishes you to examine the ground, and determine upon the positions you will take in that event, in order that you may be prepared for him in whatever direction he advances. He suggests that you have heavy reserves well in hand to meet this contingency. The right of your line does not appear to be strong enough. No artificial defences worth naming have been thrown up; and there appears to be a scarcity of troops at that point, and not, in the general's opinion, as favorably posted as might be. We have good reason to suppose that the enemy is moving to our right. Please advance your pickets for purposes of observation as far as may be, in order to obtain timely information of their approach. JAMES H. VAN ALEN, Brigadier-General and Aide-de-Camp.