Take special precaution at all times to maintain constant communication between units, especially at night and when crossing woods. If enemy aeroplanes appear, stop and keep out of sight as much as possible. (Cf. par. 120.) 5.--On reaching the trenches: The relief should be completed in silence--without hurry. Carefully ascertain the orders of the battalion relieved. Check up and assign to each unit the supplies taken over. Requisition at once additional supplies and ammunition wanted. Each platoon should be assigned its special duties, the duty roster drawn up for all sentry and patrol duties, details, etc. Have all the men locate the enemy trench as they come on duty and give them the range. Inspect the dugouts and assign them. Forbid all digging under the parapet. Inspect the latrines. Give strict order that small amount of dirt be thrown in after use and that lime be sprinkled in daily. See that the men are provided with ammunition. Communication should be insured between the various units to the right and left and with the rear. CARE AND IMPROVEMENT OF THE TRENCHES. 6.--Improvements: Investigate the work under way for the improvement of defense and prepare plans for further work if necessary. Obvious improvements are: making additional communication trenches, repairing or completing shelters, listening posts, mining tunnels, wire entanglements. 7.--Ammunition shelters: See that there are a sufficient number of shelters for rifle ammunition, grenades, rockets and other supplies. 8.--Loopholes and Parapet: Ascertain the conditions of all the loopholes and have them repaired if need be. (They should cut the parapet diagonally and be concealed in every way possible with vegetation, branches, and the opening blocked when not in use.) Have all damages to the parapet and to the ground underneath quickly attended to. See that in each section there are small ladders to permit of easy access to the top of the parapet. See that means are provided to fire above the parapet in case of an attack. 9.--Drainage: Attend carefully to the drainage. Have the trench bottom kept convex with small gutters on either side running into pits lined with gabions. If trench bottom is lined with board walks, keep it in repair. Have water pits emptied if necessary. 10.--Sanitation: Have latrines kept in perfect sanitary order. Have them filled up and others dug =if need be=. Have all rubbish collected and carried out. 11.--Precautions against capture of fire-trench.