It is mentioned in Section VII. that when the Videttes have fired their fire-arms, they must gallop back by the road pointed out to them. It is of the highest importance to instruct the night Videttes, that, in case the Enemy should rapidly attack them, they are not to retire towards the Picquet, but a hundred and fifty yards to the right or left of it, firing constantly in the meantime, and trying by these means to mislead the Enemy, and draw him after them. The Picquet hereby gains time to mount, and to fall in the Enemy's flank and rear, with a great noise, who will certainly suspect to have fallen in an ambush, be puzzled, and perhaps lose some prisoners. Immediately after this attack is made, it will be best to fall back again on the road fixed upon for a retreat. It is therefore necessary to show the men in the day the road which the Videttes are to take, when they are attacked in the night, and likewise whereabout they are to rejoin the Picquet. The other part of the retreat is nearly the same as in the day, with this difference only, that there cannot be skirmishers in front, but only two or three men at the head. It is necessary to fire as much as possible, but wherever a stand can be made, an obstinate defence is desirable. It is unnecessary to remark that a report is to be sent as soon as attacked. II. ADVANCED GUARD. _By Day._ Suppose the same consists of one Officer, two Non-commissioned officers, and twenty-four men, the officer commanding tells them off as in fig. 3. [Illustration: _Fig. 3._] This gives an extension of 1,500 yards, which is sufficient for twenty-four men. If the column is larger, the Advanced Guard is likewise stronger and more extended. A rule is, that the Advanced Guard should take up so much ground, that when it discovers the enemy, the column has sufficient time to form and make dispositions, either for attacking or retiring. The several divisions of the Advanced Guard must always keep their support in sight, and be careful to preserve the same distances. When the column halts, the Advanced Guard does the same, but the three men at the head instantly occupy the neighbouring heights, in case the enemy should be within four or five hundred yards. If the Advanced Guard comes to a wood which is supposed to be 2,000 yards broad, the Sergeant reinforces the three men at the head with six more, who extend themselves so far to the right and left as to be in line with the first three, that they can see each other, and what is concealed between them, and he follows with the two men left him, the three men in advance on the road. Should the wood be too large, the Officer must send two men to the right, and as many to the left, round it, who are carefully to examine whether they can see the traces of troops marched into the wood, which is to be immediately reported. The column halts until this is ascertained.