In the diaries of the time you find much reference to gas fatigue. British gas was used whenever the wind seemed favourable. Gas did not seem however to have power to stifle many enemy defenders. Gas fatigue was the carrying of the cylinders to the line. Emplacements were dug for cylinders below the parapet of the trench and "riveted" with sand-bags. Twenty or thirty cylinders would be thus ranged together at intervals of twenty-five yards. The cylinders contained the gas in liquid form, and ejection was worked on the syphon principle. This use of gas was seldom justified by results, and added an infernal torture and ugliness. It was a true diabolism. Almost always it afflicted the side which operated it as much as it did the enemy. Protection against gas was clumsy and inadequate. We started with the "stokers' pad" which was proved useless. Then we had a cotton pad soaked in hypo and tied on by veiling which was supposed to protect the eyes. And then followed cloth helmets soaked in hypo, helmets with mica eyes, very smelly, clammy, and unreliable. Mustard gas at a later date brought the respirator. But the protection at Loos and Hulluch was the old hypo bag of which not a few still lie about. The war was becoming quite complicated and new. A Lewis gun was first used in the battle for Hohenzollern Redoubt, and in time each battalion, nay, each company, will have its Lewis gunners. Steel helmets were also issued at Hohenzollern and were considered curiosities. One battalion received five helmets! They were supposed to be for the special use of the bombers. But then everyone became a bomber in that battle. It is with awe that one looks on the silent empty Hohenzollern system now, where trenches for many days were choked with dead. Some commanders in those days thought double rum-rations put the necessary devil into men to carry them through the ordeal of a fray, and it is common talk in the Army that some of the units that went into the storming of Hohenzollern Redoubt knew very little of what they were doing. One thing is certain: alcohol has power to banish fear from men's minds, if fear there happen to be. It dulls the brain to danger. But then alas, it often dulls it to much else. Cool heads were needed to meet the German. And the night-attack at Hohenzollern failed. The dead lay as if emptied out of sacks into the pits, into the trenches, some head downward, some with legs alone visible. Whilst it rained in London, and the evening crowds glided along Shaftesbury Avenue and Piccadilly talking of anything and everything, happily, snugly,--away out there in the darkness lay such a scene. It was most near, but an impenetrable black curtain hid it from the eyes.