A =Wall-tent= will accommodate four men; preferably three if there be sufficient canvas. The rectangle marked by the pins for guy-ropes has a front of 18 feet and a depth of 14 feet. It is pitched by four men. Nos. 1 and 2 bring ridge and upright poles, unfasten them, and place ridge-poles as directed by the non-commissioned officer. They then place the upright poles in position on the ground, usually on the side opposite that from which the wind is blowing. Nos. 3 and 4 bring tent, unroll it, and all now open canvas and place it in position for pitching; No. 1 working in rear, No. 2 in front, fix the ridge-pole and tent, tapping with a maul, if necessary, to drive the uprights home. The fly, if used, is now placed in position over tent, and the centre loops are secured over front and rear pole-pins, which have been previously driven by Nos. 3 and 4. All draw bottom of tent taut and square, the front and rear at right angles to the ridge, and fasten it with pins through the corner loops; then, stepping outward two paces from the corner pins and one pace to the front (or rear), each securely sets a long pin, over which is passed the extended corner guy-rope. The tent is now raised and the poles set in position. The other pins are then driven and the guy-ropes properly secured. A =Common Tent= should not be made to hold more than three men. It is similarly pitched. In pitching common or wall tents care must be taken that the door is tied up, and that it is properly squared and pinned to the ground at the door and four corners before being raised. A =Shelter-tent= merely affords cover for two men. In assigning men to tents bear in mind that the crowding of men in tents for sleeping purposes is highly injurious to health. In pitching the tents disturb the ground inside and around as little as possible. Do not allow absurd notions of order and regularity to cause tents to be pitched in hollows, which are frequently met with in the best sites, when, by moving the tent perhaps a few feet one way or another, a good position for it might be found. In camps of position, when tents are used, it is advisable to supply planking for the men to lie on, these planks to be removed and aired every fine day. If boards cannot be had, use any sort of tarpaulin or waterproof sheet that can be obtained. If straw be plentiful, issue enough to make good thick mats for the men to lie on. They are easily made and most comfortable. They should be hung up to dry every day. They should be 3 inches to 4 inches thick, 6 feet long, and about 2¼ feet wide. [Illustration: FIG. 79.]