A Divisional relief on July 3 and 4 was spotted by Capt. Kirsopp on information given by the observers of exceptional movement in the forward area. Another Divisional relief was detected by largely increased movement on July 25. And a battalion relief on August 6, with disastrous results for the enemy. At least fifty copies of different telescopic sketches were sent in to the Division, including a series of eight showing new workings by the Germans in their front line system. Reports of nearly seventy gun-flashes were sent in as well as many sound bearing reports. The following numbers of German infantry and transport vehicles were reported from Adam O.P.
| Month | Days | Days of Bad Light | Effective Days | Infantry Seen | Transport Vehicles |
| June | 21 | 8 | 13 | 2,100 | 83 |
| July | 31 | 7 | 24 | 5,400 | 413 |
| August | 20 | 4 | 16 | 4,650 | 205 |
| Total | 72 | 19 | 53 | 12,150 | 791 |
Our two best days occurred on August 6 and 12. On the 6th a large movement was observed in the early hours, indicating a relief, which was reported to the Division at once by wire. So that when the relief was continued at night, our artillery were prepared to deal with the German parties moving in or out of the trenches. On this day alone 1126 infantry and 55 transport vehicles were seen on the move. The 42nd Division Intelligence Report of August 7 reported the matter as follows:
'Relief south of the Serre-Mailly Road which commenced on a large scale on the morning of the 6th was continued during the evening; between 6.50 and 8.20 P.M. 197 men with packs in nineteen parties came towards the front line past Q. 6. a. 95. 80. These parties were engaged by H.A. with great success. Casualties caused being estimated to be at least fifty; four direct hits were obtained on a party at 7.15 P.M., and on one occasion an out-going party was seen to have a free fight with an in-going party to gain possession of a sunken track or trench in Q. 6. a. Total hostile infantry seen by Divisional O.P. on the 6th reached the high number of 1126.'
The observers had their share in those fifty casualties, as Pte. F. Turner went to Rose O.P. and directed the Sergeant Gunner in charge to the proper map reference of the German troops. That 6-inch battery shot superbly, and I wish I knew the Sergeant's name. The G.O.C. sent his congratulations to the observers on the day's work.
On August 12 at 6 A.M. the observers informed me that the Germans had been seen going out of their trenches in large numbers and all carrying packs, rifles, and boxes as well. On this I sent a pigeon message to the Corps, saying that the enemy might be retiring now. As it happened this was quite correct, as the Germans admitted themselves a few days later in their communiqué.
I also wish to put on record an act of kindness to the observers by the Division and Corps. On August 8 the enemy began to shell the neighbourhood of Adam O.P. rather severely with a 5.9-inch howitzer battery. As this went on, I rang up D.H.Q. and asked if anything could be done in retaliation against the enemy's O.P.'s in L. 33. a. Col. Guy told me that he would see what the Corps would do for us; and rang up later to tell me to ask the observers at Adam O.P. to note results at 2.30 P.M. At the appointed time, every active heavy gun in the Corps fired a shell simultaneously against selected targets, including L. 33. a. There were at least four brigades of heavies in the Corps and the noise was colossal. It must have astonished the enemy as much as it did me.
On August 9, 2nd-Lieut. Edmunds of the 7th N.F. came to assist me, and to take over command of the observers during my leave which was now drawing near. I told him that we had never been shelled at Eve O.P. But as luck would have it that very afternoon, about 2 P.M., a long-range gun shelled the O.P. for about twenty minutes; and I had to clear the men off into the neighbouring Red Line trenches till the annoyance ceased.
On August 14 the enemy were attacked all along the IV Corps front and a considerable advance was made that day. Pte. King remained at the telescope all day, and sent in a number of interesting reports about the enemy's movements.
At this point I have to break off the narrative, as my leave warrant arrived that night and I left the observers till August 31 in charge of 2nd-Lieut. J.H. Edmunds.