NOTES

on the

CONSTRUCTION OF CYLINDER EMPLACEMENTS

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The type of emplacement constructed must depend on the local conditions.  For example, in dry, firm soil it may be possible to omit wood linings altogether.

It may happen in emergency that there will be no time to make emplacements at all, and the cylinders may have to be placed on the fire-step, and discharged in that position.

Wherever possible, however, the greatest efforts should be made to give the cylinders adequate protection: otherwise, the contemplated use of gas may be disclosed to the enemy by the accidental destruction of a cylinder by a rifle grenade, trench mortar shell, etc., before the commencement of the battle.

The nature of emplacement adopted must be left for local decision: and it will depend on the amount of material available, the nature of the revetment, the width of the trench, the weather conditions, etc.

The accompanying drawings show types of emplacements that have been constructed for recent operations.

CW Foulkes,

Colonel,

O.C., Special Brigade.

April 10, 1916.

Illustrations held with original text.