(g) Artillery support.
(h) Communications.
(i) Dangerous points.
(j) Lines of advance to be used in a counter attack.
(k) Position of "shell trenches" or "feathers," or other cover from enemy artillery fire.
24. GUIDES.—(a) Arrangements will be made between the C. O. of relieving and about to be relieved battalions as to places where guides will be provided by the latter to conduct the incoming troops to the trenches.
(b) One guide per platoon, one for each company headquarters, and one for battalion headquarters will be provided.
These guides must know the exact spot where they will meet the relieving troops and the best and safest way to the trenches.
25. SMOKING AND TALKING.—After leaving the rendezvous there is to be no smoking or talking till arrival in the trenches.
26. RATE OF MARCH TO TRENCHES.—The rate of marching to the trenches from billets will not exceed 2 miles an hour.