The whole of the men face towards the gun; 11 unships his traversing handspike; the limber is brought up by 15, rather to the right of the gun, and then turned to the left about; 12 and 13 raise the trail, and place it on the limber, in which they are assisted by 7 and 8 bearing down on the muzzle, and 9 and 10 at the wheels; 11 chains the limber. _Heavy Field Guns, or Howitzers._—The only difference from the above is, that 9 and 10 assist 12 and 13 to raise the trail, and 14 and 15 stand to the gun wheels. 4. _To unlimber._—_Light Guns and Howitzers._ The whole face towards the gun; 11 unchains the limber; 12 and 13 lift the trail off the pin tail, and set it on the ground, in which they are assisted, as in limbering up, by 7, 8, 9, and 10; 11 ships the traversing handspike, and the whole assume the position for action. The limber is led by 15, and the driver, 25 yards to the rear, and there turned to the left about. The leading horse is unhooked by the driver, and tied to the rear of the limber. _Heavy Field Guns, and Howitzers._—The same as the light ones, except that 9 and 10 assist 12 and 13 to raise the trail, and 14 and 15 stand to the gun wheels. The heavy guns have generally mounted riders, in which case the leading horses are not unhooked. It must be understood, that simply to _limber up_, or to _unlimber_, means that the gun is to be placed upon its limber, or lifted off, without changing its direction; but guns may be limbered up to the _front_, to the _right_, or to the _left_, according as it is intended to advance in any one of those directions; and unlimbered to the _rear_ to prepare for action to the _front_, to the _left_ for action to the _right_, and to the _right_ for action to the _left_. To limber up, or to unlimber, in any of these situations, is exactly the same as those already given, except that in the first, previous to limbering up, the trail is thrown round by No. 11, assisted by 12, if necessary, into the direction specified by the word of command, and the limber is brought up to that side to meet it; and in the second, the trail, after being taken off the limber, is carried round to the _rear_, _right_, or _left_, according as the word of command expresses, before it is put to the ground, and the limber goes round to the rear of the gun. It must be here remarked, that the _front_ of a gun, or line of guns, or column of guns, is that to which the men at the gun front, without any respect to the situation of the gun or carriage. The trail of the carriage, when moved round to the rear or the contrary, whether in limbering up or unlimbering, must always be carried round to the _right_, and the limber, or a horse, when brought up to advance or retire a gun, must always be brought up on the _right_ side, and go off on the _left_; and whenever the limber is turned about, it must be to the _left_ about. By attending to these precautions the greatest confusion is avoided. _Other Methods of advancing Guns._