Second Corps. ^ First Corps. ---- ---- ^ ---- ---- | ---- ---- ^ ---- ---- 2d Division. | 1st Division | 2d Division. | 1st Division | ---- ---- | ---- ---- 3d Division. | 3d Division. [Illustration: Fig. 25.] 2d Corps. ^ 1st Corps. | ---- ---- | ---- ---- 1st Division.| 1st Division. | ---- ---- | ---- ---- 2d Division. | 2d Division. | ---- ---- | ---- ---- 3d Division. | 3d Division. * * * * * _Two Corps of Three Divisions of Three Brigades each._ [Illustration: Fig. 26. Two Divisions in the 1st Line, and one in the 2d Line.] First Corps. ^ ---- ---- ---- | ---- ---- ---- 2d Division. | 1st Division. ---- ---- ---- 3d Division. Second Corps. ^ ---- ---- ---- | ---- ---- ---- 2d Division. | 1st Division. ---- ---- ---- 3d Division. [Illustration: Fig. 27. Same Order with 3d Brigade as Reserve, and the 2 Corps Side by Side.] Second Corps. ^ First Corps. | 2d Division. ^ 1st Division. | 2d Division. ^ 1st Division. ---- ---- | ---- ---- | ---- ---- | ---- ---- ---- | ---- | ---- | ---- | | ---- ---- ---- | ---- ---- ---- 3d Division. | 3d Division. [Illustration: _Shallower Formation: Twelve Brigades in the First Line, and Six in the Second Line._ Fig. 28.] Second Corps. ^ First Corps. | 2d Division. ^ 1st Division. | 2d Division. ^ 1st Division. ---- ---- ---- | ---- ---- ---- | ---- ---- ---- | ---- ---- ---- | ---- ---- ---- | ---- ---- ---- 3d Division. | 3d Division. * * * * * Note.--In all these formations the unit is the brigade in line; but these lines may be formed of deployed battalions, or of battalions in columns of attack by divisions of two companies. The cavalry attached to the corps will be placed on the flanks. The brigades might be so drawn up as to have one regiment in the first line and one in the second.