A complete detailed plan of our own trenches and as much as is known of those of the enemy opposite should be made, and be available for study and to refer to in making reports. Every bay of the trench should be numbered, every traverse lettered. All junction points of fire and communicating trenches, all dugouts, all posts, mortar positions, machine-guns positions, observation posts, and any points that it may be necessary to refer to in reports should be designated by numbers.
Frost Bite; Chilled Feet
The causes are:
1. Prolonged standing in cold water or liquid mud.
2. Tight boots and leggings, that interfere with the blood circulation.
Prevention
1. Before going into the trenches wash the feet and legs and dry them thoroughly. The British Army has an issue of an anti-freeze mixture which will probably be issued to our troops also. The feet and legs should be rubbed with it. Put on perfectly dry socks. An extra pair of dry socks should be carried.
2. During the period of service in the trenches the feet should be treated in this manner from time to time.
3. When the feet are cold, hot water will not be used for washing nor will they be held close to a fire.
4. Rubber boots must be worn only in the trenches. On no account must they be worn while on reserve.