_Dumps_―― 21. An advanced Brigade Dump of bombs――S.A.A.――Stokes mortar ammunition――R.E. material and rations has been established about T.8.c central. _Equipment_―― 22. The equipment to be carried by assaulting troops will be the same as that laid down for the attack on September 15. 23. Arrangements have been made for the Brigade on our right to open enfilade machine-gun and trench-mortar fire on the Green line from about T.9.d.3.9 at zero. This fire will be continued until the creeping barrage passes beyond the Green line. _Medical Arrangements_―― 24. Medical arrangements will be notified later. _Brigade Headquarters_―― 25. Brigade Headquarters will be at T.19.a.½.3½. An advanced Brigade Report Centre will be established in the communication trench T.8.b――T.3.c on September 22. Pigeons will be supplied to the battalions on Z day as follows: 3 to 2nd Bn. Grenadier Guards. 3 to 1st Bn. Irish Guards. 6 to 3rd Bn. Coldstream Guards. As soon as all pigeons have been released pigeon men must return at once to Brigade Headquarters. 26. Z day will be September 23. Zero hour will be notified later. It will probably be in the afternoon. Acknowledge. M. B. SMITH, Captain, Brigade-Major, 1st Guards Brigade. A Memorandum from the Brigade-Major on the lie of the land followed. 1ST GUARDS BRIGADE, NO. 262 2ND BATT. GRENADIER GUARDS―― The forthcoming attack differs from the last in that the whole scheme is not such an ambitious one. The distance to the first objective is about 300 yards, to the second objective 800 yards, and to the last objective about 1300 yards. In each case the objective is a clearly defined one, and not merely a line drawn across the map. Between our present front line and the first objective there is only “No Man’s Land.” During the next two nights this should be actively patrolled to ensure that our attack is not taken by surprise by some unknown trench, and in order that Officers and N.C.O.’s may have a knowledge of the ground. It would also be of great assistance to the Artillery if reports as to the actual distance to the Green line were sent in. The ground slopes down to Lesbœufs, beyond which there is a distinct hollow with a plateau the same level as Lesbœufs beyond. On reaching the final objective Officers and N.C.O.’s should understand the necessity for pushing patrols out to command this hollow and give warning or prevent counter-attacks forming up here. Large-scale maps of Lesbœufs have been sent to all battalions. These should be carefully studied by all Officers and N.C.O.’s, and especially by those of the companies detailed for the cleaning up of Lesbœufs.