Arrangements must be made for replenishing the supply when necessary from depots which must be formed at convenient centres when the nature of the operations may necessitate it.

These depots should be pushed forward from time to time as the troops advance.

The work of a column obliged to return to its base of supply before it has had an opportunity of completing the object of the expedition must be more harmful than beneficial, as its failure emboldens the enemy and weakens the confidence of the people in our power to protect them and to reach the offenders.
_2nd_ .-- Where two or more columns are acting in concert, the details of time and place of movement should be settled beforehand with the greatest nicety, and the commanding officers of all such columns should be provided with the same maps, or tracings from them, so that subsequent changes of plan, rendered necessary by later information, may be understood and conformed to by all.

Officers commanding columns must do their utmost to get into, and keep up, communication with one another.

This can be effected by: Visual signalling, Spies and scouts, Patrolling.
_3rd_ .-- Movements to be executed in concert with the troops in other brigades or commands, or likely to tell directly or indirectly on the districts commanded by other officers, will be fully communicated to those officers, both beforehand and when in progress.
_4th_ .-- Brigadier-Generals are empowered to give very liberal remuneration for the effective service of guides and for information involving danger to those who give it.