trenches are on a
reverse slope.
3. Chief function is protection of the entanglements.
(d) Microphone Posts.--Installed usually behind the first line.
Intercept the enemy's telephone and ground-telegraph
messages and any loud conversation in his trenches.
(e) Fixed Patrols.--Generally remain in shell holes in front of
our entanglements.
(f) Reconnoitering Patrols:
1. Composed of from 3 to 5 men, commanded by a
non-commissioned officer. Sent out at night only.
2. The company commander must promptly notify commanders of
adjoining companies of the dispatch of these patrols,
their time of departure, route and probable time of
return.
3. Men should be assigned to this duty by roster.

F. TRENCH WORK:

1. Constant battle with the elements, care for drainage,
revettment, sanitation and storage.
2. Repair of the effects of bombardment.
3. New work, for better security, communication and observation.
4. Work in the open.
(a) Usually consists of repair or rearrangement of wire
entanglements, digging new listening posts, etc.
(b) Effected by parties detailed by roster.
(c) They are guarded by fighting patrols, composed like
reconnaissance patrols. Their best protection is in silence
and concealment.
(d) Adjoining companies must be notified of their dispatch,
location and probable time of return.
(e) This work, like all operations conducted outside the
protection of the trenches, offers a valuable tonic to the
morale.

G. OFFENSIVE OPERATIONS:

1. Sniping:
(a) Snipers constitute one of the most dependable and
productive agencies of attrition.
(b) The best shots of the company are especially trained and
assigned for this duty exclusively.
(c) They operate in pairs and post themselves to cover any
exposed portions of the enemy's trenches, especially his
communicating trenches.
(d) They should be well supplied with all necessary special
equipment; _e.g._, sniperscopes, telescopic sights, painted
headgear, etc.

2. Mining Operations.

3. Raiding:
(a) Object of raids: destruction of the enemy's defenses,
disturbance of his morale, collection of prisoner