2. If the Videttes observe Troops marching towards them, but yet at a great distance, they will ride the circle in a trot. The Officer's duty is, as in 1. 3. If the enemy's Troops come towards the Picquet, and are at only one English mile distance from it, the Videttes circle in a gallop. The Officer immediately advances with his whole Picquet. His duty is prescribed in the paragraph on the Attack of a Picquet. If the enemy is so near that the Videttes are obliged to gallop to their Picquets for their own security, they fire their carbines and pistols in case the Picquet should not have advanced. _By Night._ 1. As soon as the Videttes hear a suspicious noise, even at a great distance, such as the rattling of carriages or artillery, the barking of dogs in the villages in front, or if they observe any fire, one of the Videttes must instantly report it to the Officer of the Picquet, in order that the circumstances may be inquired into by a Patrol. 2. Should any person approach the Vidette, he must be challenged with "Who comes there?" so loud that the Picquet and the next Videttes are able to hear it. If those that approach do not halt upon this, the Vidette should challenge a second time; if they do not halt, he should fire, and retire on the road pointed out to him, &c., &c. But if those that he challenged halt, he cries out "One man dismount!" and at the same time, "Sergeant advance!" The dismounted man he desires to approach, but not nearer than three yards, and holds the cocked pistol directed against him. The Officer of the Picquet must be instantly there, and examine carefully where the person or persons came from, who sent them, and what for, (when the enemy has the intention to surprise a Picquet, he sometimes pretends to be a friendly Patrol,) to what regiment they belong, the name of their Brigadier, Commanding Officer and Captains--where their regiment is encamped, &c., &c.; if they are able readily and justly to answer these questions, they may pass unmolested, as in that case one may consider it a certainty that they are no enemies. SECTION VIII. ON THE ARRIVAL OF A FLAG OF TRUCE.