BRIGADE DRILL.
120. Deployments.
Lines of battalions in quarter column or in column, at any interval, will deploy into line, each battalion in succession following the procedure in S. 109, and commencing its deployment on reaching a point thirty paces from the mounted officer on the outer flank of the battalion next to it in line.
If a brigade in mass is to deploy into line, the leading battalion will deploy at once; the remaining battalions will move by the shortest lines to the points where their inner flanks are to rest in the line, and will then deploy in the usual manner.
121. Marching in line.
When a brigade is required to march in line, each battalion will march by its centre. A mounted officer of each battalion, not directing, will ride on the inner flank to ensure that the correct interval is maintained.
122. A brigade in line advancing in columns, or quarter columns.
Line of columns or of quarter columns will be formed as in S. 112.
123. A brigade forming square.
For the protection of a convoy, or wounded men, it may be necessary to form brigade square. The angles of a square are its weak points; in order, therefore, to obtain the greatest amount of resistance to resolute savages, the flanks of battalions should not meet at an angle. The square may move in any direction on the same principles as a battalion square.