(8) The location, amount and condition of stores.
(9) Danger points.
(10) All available information of the enemy; his habits,
location of his snipers, what work he is doing.
(11) The ways and means of liaison, both lateral and from
front to rear. 
To the success of this reconnaissance, the closest
co-operation between all officers of the companies
relieving and relieved, is indispensable.

2.  The march from billets to the trenches: 
(a) Transportation, by auto-trucks and wagons, is utilized
to a point as near the lines as possible, to carry the
packs of the men, the auto rifles, extra ammunition and
other heavy equipment.  When the distance is great the
men themselves should be carried by auto-truck; this
saves time and fatigue.  The men will carry rifles loaded
and locked, full cartridge belts, gas masks, and all
other lighter equipment, with rations for 24 hours at
least.  Grenades will be secured in the trenches. 
Electric torches will be carried by company and platoon
commanders.
(b) The strictest discipline must be maintained.  On arrival
within sight of the enemy, noise and smoking (or other
lights) will be prohibited.
(c) Guides, from the company to be relieved, will meet the
relieving company promptly at a point definitely agreed
upon in advance.

3.  The march through the boyaux (communicating trenches): 
(a) Distance; often as much three or four miles.
(b) Order of march:  company in single file, captain at the
head; each platoon leader at the head of his platoon; a
non-commissioned officer at rear of each platoon.
(c) The column must be kept closed up.  Each man must consider
himself a connecting file, guiding on the head, and
behave accordingly.  A guide should accompany the
commander of the last platoon.
(d) Rate of march:  roughly, about 40 yards per minute.  It
takes 250 men about 20 minutes to pass a given point.
(e) Route and right of way: 
The first line and support trenches will never be used
as roads.  Separate boyaux should, if possible, be
assigned to the troops relieving and relieved.  In no
case will one company cross the path of another.  In case
of two columns meeting, one moving forward, the other to
the rear, the former has the right of way.

4.  No man of the unit in occupation will leave his post until
he has actually been relieved and has transmitted all orders
and information relative to that post.

5.  Liaison must be established, immediately on arrival, with the
units on the flanks and with headquarters in the rear. 
Captains must make sure that their runners are thoroughly
acquainted with the routes of communication.

6.  As soon as relief is accomplished both captains will report
that fact to their respective commanders.

7.  The relieving commander then inspects his trenches.  He
ascertains that all his watchers are at their posts and that
the balance of his men know their posts and duties and are
prepared to assume them quickly.