this
would be giving the enemy a double mark. Artillery posted in front of
other troops will draw a fire on them. When a battery must be placed in
front of the line, let the infantry in rear of it clear the ground by
ploying into double columns.

6. Never place artillery so as to _impede the movements of the other two
arms_. A battery posted in front of the centre would often hamper the
movements of the infantry; besides being peculiarly exposed to a
converging fire from the enemy's batteries.

7. The safest position for a battery is on that wing which is most
secure from a flank attack.

But guns should re-enforce the weaker points, thus making the enemy
attack the strongest ones.

Therefore, _where a wing is weak_, place the largest number of guns
there, to support it. If we have one wing entirely uncovered, of four
batteries, for instance, we should give three to the uncovered wing.

8. Of the heavy batteries, one, at least, should be placed in the first
line, so that we may be able to open an effective fire on the enemy at
the _earliest possible moment_.

9. The prompt use, at the proper moment, of the reserve, may decide the
battle. The movements of heavy artillery, therefore, are too slow for
the reserve, which should have most of the light pieces. _Horse
artillery_ is especially suitable for it.

10. Guns near an infantry square should be posted at its _angles_. If
the square is charged by cavalry, the gunners run into the square, after
filling their ammunition pouches, which they take in with them, as well
as their sponges and other equipments. The limbers and caissons are sent
to the rear; or, if there is no time to do this, they may be brought
into the square. If this is impossible, they may be formed into a
barricade.

At Waterloo, on the French cavalry's retiring from their charges on the
enemy's squares, the British gunners rushed out from the squares in
which they had taken refuge, and plied their guns on the retiring
squadrons.

III.--How posted with respect to the Enemy.

1. If the enemy's batteries are concentrated in one position, by placing
our own batteries properly we may obtain a powerful _cross-fire_ on
them.

2. It is always advantageous to so dispose our batteries as to take
those of the enemy _in enfilade_, or obliquely (_en echarpe_, as it is
called).

At the battle of Murfreesboro', in December, 1862, a rebel battery,
being taken in enfilade by one of our own, was silenced