The following officers joined in June:

Lieut. A. R. Muddell (4th Londons); Lieut. G. de G. Barkas, M.C. (to Intelligence Officer) and 2/Lieuts. T. G. Owen and S. T. Morris (1st Londons); 2/Lieut. H. Slater (3rd Londons); Lieut. J. D. Morrison and 2/Lieuts. G. H. Main, R. D. Cotton and K. W. Gauld (14th Londons); 2/Lieut. F. Bidgood (16th Londons); Lieut. C. I. Mansel-Howe (23rd Londons); and Lieut. C. C. Brissenden (A.S.C.).

Reinforcements of 181 N.C.O.'s and men—mostly young soldiers—were also received.

A few days spent in reserve at Baizieux in the first week of July brought the 2/4th Battalion for the first time into contact with American troops, a battalion of whom were bivouacked here.

The month of July was passed in similar fashion to those which had preceded it. From the 6th to the 18th the Battalion was in the Ethel-Dandy system, astride the Amiens-Albert Road, at first in front trenches and subsequently in support. On the 18th a withdrawal to reserve lines at Baizieux and Laviéville was effected, and here the Battalion remained for nine days. After one day spent in cleaning up in Behencourt the Battalion moved into line again on the 27th July, relieving the 30th Australian Battalion in support trenches around Ribemont, between that village and Buire-sur-Ancre.

Life in the Ribemont sector was comparatively peaceful. As before the men were principally occupied in working parties on the defences and the officers in reconnoitring lines of approach to the front trenches. On the whole the enemy was quiet, though he frequently added insult to injury by dropping on the Battalion gas shells evidently intended for the batteries which were in action just in rear of it. The trenches were comfortable, for all these months of hard work had been to some purpose; and the presence of ruined villages in the near vicinity was the means of adding touches of home life in the shape of a few odd sticks of broken furniture which had formerly graced a cottage home in Buire. An inter-platoon boundary in one of the trenches was marked by what had once been a handsome perambulator, while a little further on a basket-work dressmaker's model stood sentry over a shell hole in ludicrous isolation.

The ravages of the influenza epidemic of June and July were severe, and casualties from this cause far exceeded those inflicted by the enemy. Between the battle at Cachy and the end of July no fewer than 427 other ranks of the Battalion were sent to hospital, though most of these rejoined after a week or two of absence.

On the 19th July the Battalion lost Lieut. S. A. Seys (15th Londons attached), the assistant adjutant, who had served with it since February 1917, and who left for attachment to the staff of the 60th Brigade. An able administrator, Seys, who, though not a 4th London officer, had loyally made the regiment his own during his service with it, left behind him many friends who sincerely regretted his departure.

During July Lieut. A. G. Croll and drafts of 92 other ranks joined the Battalion. 2/Lieuts. Gauld and Cotton rejoined their own regiment. While the Battalion was at Baizieux the medical officer, Lieut. Dunaway, U.S. Army, was presented by the Corps Commander with the Military Cross, awarded him for services in March and April. It is believed that Dunaway was one of the first American officers to receive a British decoration for gallantry in the field.

At the end of July companies were commanded as follows: A by Lieut. C. C. Brissenden, B. by Capt. A. G. Croll, C by Capt. W. H. Parslow and D by Capt. B. Rivers Smith.