Being arrived at the spot chosen by himself, or pointed out to him, he forms his Picquet, and takes out as many men as he thinks he has occasion for as Videttes. To fix upon the number of Videttes, is much facilitated by riding on the top of a hill, and observing the number of roads and hills in front. With these Videttes he goes on, and places them in such a manner that every one of them is able to see individually what is coming towards the Picquet, as well as the neighbouring Videttes. The remainder of the Picquet dismounts in the mean time, with the exception of one Sentry, who is to be placed a little in advance. The bridles are not to be taken off. In placing the Videttes the Officer will have acquired a sufficient knowledge of the country to be able to judge whether any of them are superfluous, (which is much to be avoided, as men and horses are unnecessarily fatigued by it,) or whether there ought to be more. Two-thirds of the Picquet now unbridle: it is to be recollected that the whole of a Picquet should never unbridle. The Officer then reconnoitres the country. Every one ambitious to do his duty well will make a little sketch, in which the following are to be marked; 1. Roads; 2. Rivers; 3. Bridges and Fords; 4. Morasses, cavities, hollow roads, and mountains; 5. Wood; 6. Towns, Villages and their distances. If the Officer does not acquire such an exact knowledge of the country, he cannot be responsible for the security of his Picquet, and of the corps to which he belongs. By this time he will have had opportunity to fix upon the spot where his Picquet and Videttes ought to be placed at night. _By Night._ It is impossible to lay down any fixed, principles on this subject; but the general rules are, to advance the Picquet at least two or three English miles in front of the main body: to place it behind a bridge, ravine, wood, or bog through which the road passes, in order to be enabled to make a stand immediately on being attacked, and to place Videttes in front and flanks. Small Patrols of two or three men in front, and flanks at half an hour's interval, and constantly kept in motion, will give perfect security, particularly if one of the men sometimes dismounts, and listens with his ear on the ground: he will hear the march of troops at a great distance. This precaution is indispensable in stormy weather. Upon coming by night to a new spot, particularly in a mountainous or woody country, small Patrols must be pushed forward immediately in all the roads, &c., to secure in the first instance the placing of Videttes, &c., &c. If the enemy is near, no fire is to be lighted, and the spot where the Picquet stands should be changed very often; one-half of the Picquet should be mounted, the other stand with the bridles in their hands. SECTION IV. RELIEVING ANOTHER PICQUET.