Two machine-guns were to accompany each battalion in the attack, the remaining eight of each Machine-Gun Company being in Brigade Reserve. Guns were allotted to all the principal strong points that were to be consolidated. Eighteen Stokes mortars were to go forward, the personnel of the remaining eighteen acting as carriers. Two sections of the 150th Field Company were allotted to the 109th Brigade, and one section of the 122nd Field Company to the 108th Brigade on each bank of the Ancre. The remainder of the Field Companies were in Divisional Reserve.
The medical arrangements were of peculiar difficulty, particularly on the southern part of the front. The two Main Dressing Stations, for stretcher cases and "walking wounded" respectively, were at Forceville, manned by the 108th Field Ambulance, and Clairfaye Farm, further west, manned by the 110th Field Ambulance. The Advanced Dressing Station was situated close to the Albert-Arras Road in Aveluy Wood. Evacuation of wounded from the Regimental Aid Posts in Thiepval Wood and Authuille had to take place over Authuille Bridge, or by the trench tramway which crossed the Ancre to the north of it. The motors of the Field Ambulance were parked on the Martinsart-Albert Road, south of the former village. For "walking wounded" there was a collecting station west of Martinsart, whence horsed wagons carried them by a cross-country track through Hédauville to Clairfaye. From Hamel evacuation was simpler, though even here it had to follow a specially dug trench from the village to a point where the Hamel-Albert Road was screened from observation.
On the 22nd and 23rd the infantry took up the positions it was to occupy during the bombardment; the 9th Inniskillings in the right section of Thiepval Wood, the 11th Rifles in the left, and the 9th Irish Fusiliers in the Hamel trenches. These troops had a purgatory to endure. For the most part in the narrow slit assembly trenches, with the rain pouring steadily down upon them, they were under furious German bombardments that wreathed the wood in smoke and flame, and made the crashing of great trees the accompaniment to the roar of bursting shells. On the night of the 26th gas was liberated by us from cylinders in the wood after a great bombardment. It was the first time the Division had had to do with the abominable stuff, which brought no good fortune. Many cylinders were burst by the heavy German barrage, and serious casualties suffered by the men of the Special Brigade responsible for opening the cocks, and by the infantry assisting them.
Two hours later a raid was carried out in this sector by a party sent up by the 13th Rifles. The men, now at a pitch of excitement and enthusiasm that rendered them resistless opponents in hand-to-hand fighting, swarmed into the battered German trenches, shooting right and left, and bombing dug-outs. They returned with one German officer and twelve other ranks as prisoners, the first captured by the 36th Division. Their own casualties were six killed and nine wounded, suffered for the most part in the Sunken Road, where, like the 9th Inniskillings, they had to lie for some time ere it was possible to return to their trenches. Captain Johnston, the leader of the raid, brought in all his casualties, as well as his prisoners. He was to fall five days later in the greater venture. The prisoners denied knowledge of our gas, nor did their respirators smell of it. It was occasionally the experience of the Division that the British gas services rated too highly the effects of their devices.
On the 27th, "X" day, it rained in sheets, and "Y" day was little better. It was accordingly decided by the Higher Command to postpone the attack for two days. This necessitated a postponement of the assembly also. Instead, inter-brigade reliefs were carried out in the trenches to give some rest to the troops that had endured the early hammering. Their rest, unfortunately, was in huts in Martinsart Wood, huts that trembled and creaked to the terrific roar of siege howitzers firing night and day beside them. Yet it was better than that other wood across the river, which was the following day, now "Y.1" day, visited by the heaviest bombardment yet seen. The trenches were in a terrible state, and the men of the medium trench mortar batteries, engaged in cutting the German wire, suffered more even than the infantry, and earned the admiration of the latter by their devotion to their task.
In all the circumstances it must be said that the total casualties for the month of June, approximately seven hundred and fifty, were not heavy. They included the results of a veritable calamity that befell the 13th Rifles. On the evening of the 28th, "Y" day, the battalion was relieving the 11th Rifles in Thiepval Wood, and marching out of Martinsart by platoons at two hundred yards' interval. As number 11 Platoon and battalion headquarters were about to march out together a shell fell right in the midst of the party. Fourteen were killed on the spot, and ten more died later. Almost all the rest were wounded, including the second-in-command, Major R. P. Maxwell, and the adjutant, Captain Wright. The confusion in the pitch darkness, with scarce a man on his feet, was appalling. Fortunately a platoon of the 11th Rifles, just relieved from the trenches, appeared on the scene, and the street was speedily cleared. But the Germans could have had far bigger hauls than this at "Lancashire Dump" on the Albert-Hamel Road in Aveluy Wood any night they had chosen to shell it.
This was the rendezvous of a mass of transport immediately after dusk, bringing up munitions and rations for the offensive. Large stores of the latter were placed in specially constructed dug-outs on the river bank. The work of the Divisional Train was here most admirably organized by its commander, Colonel Bernard. So close were the big convoys to the German trenches that extraordinary precautions to avoid noise had to be taken. Wheels were bound with straw and old motor tyres, steel chains replaced by leather straps, boots, like those used in rolling a cricket ground, placed over the horses' hoofs. And it was an amusing sight to see an A.S.C. driver frantically clinging to the nose of some sociable horse that desired to greet new acquaintances with a friendly neigh.
The reward of waiting came in a fine day on "Y.2" day, the 30th. Divisional Headquarters moved up to their report centre on the Englebelmer-Martinsart Road. At night the approach march took place, and assaulting battalions returned to their positions in the trenches. The assembly positions of the 107th Brigade (less 15th Rifles) were in slit trenches in Aveluy Wood. The battalions marched up by cross-country tracks, marked, one by red lanterns, the other by green. The night was fine, and the artillery on either side rather less active, though lachrymatory shell was falling in the wood. In a curious complete lull that fell before dawn, men heard with astonishment a nightingale burst into song, pouring out her bubbling notes one upon the other, as though this had been still the pleasant copse, deserted by man, but a kingdom of the birds, of two years gone.
The two days' postponement had had upon the men an effect contrary to that which might have been attended. The extra strain of waiting was more than counterbalanced by the coincidence of the date. For it was upon July the 1st, the anniversary of the Boyne, that the sons of the victors in that battle, after eight generations, fought this greater fight. To them it had a very special significance. A stirring in their blood bore witness to the silent call of their ancestors. There seemed to them a predestination in the affair. They spoke of it as they waited, during the final intensive bombardment, while the German counter-barrage rained upon their trenches.