10. In these retrograde movements, the ammunition waggons must be sent to the rear. One or two may be kept nearer than the others, to supply ammunition.
Artillery, acting with other troops.
1. The artillery should always cover the troops when advancing, retiring, or deploying into line.
2. When the line retires by alternate companies, wings, or battalions, the artillery must remain with that part of it which is nearest the enemy; retiring with the prolonge, and halting when it arrives at the halted part of the line.
In column.
3. When the troops are in column, the artillery should be on the flank.
4. When a line of troops wheels backward into column, the artillery break into column, and close to the reverse flank, so as not to interrupt the line of pivots.