(_b_) =In forming line to the front from column= the other elements (par. 336) take, without command, a correspondingly faster gait than the base. =If gallop= be _commanded_ at any time, it applies only to the other elements (_f_). The base (leading element) habitually preserves the gait of march (_a_). The leader controls the movements of the base according to the object in view. He may diminish its pace or gait or halt it to hasten the formation. A command to decrease the gait or to halt, given during the execution of the movement, applies only to those elements that have already completed the movement. The leader habitually so controls the base that elements in rear need not move faster than a maneuver gallop in order to execute the movement. (_c_) =Column to the front is formed from line= on the base at the gait of march (_a_) or at the gait ordered (_e_). The other elements (par. 336) take or maintain a correspondingly slower gait (or, if halted, remain so) until they can move at the gait of the base to take their places in the column. If an increased gait be _commanded_ at any time, it is taken at first only by the leader and base or by the leader and those elements that have already moved to enter the column (_f_) (_d_) In cases not covered by (_b_) or (_c_), if the base and other elements have equal distances to go they move at the gait of march or at that indicated in the command (e.g., 1. =Platoons right turn, trot=; 2. =MARCH=). (_e_) In cases not covered by (_b_), (_c_), or (_d_) (e.g., assemble from =foragers=, par. 414), or by some special provision in the description of the corresponding movement (e.g., =echelon=, par. 702) the base maintains the gait of march (_a_) or takes that of the leader; the other elements move at a correspondingly faster or slower gait as may be necessary for the execution of the movement and on arriving at their places take the gait of the base (par. 338). If a special gait be commanded, it is taken by the base or by the other elements, in accordance with the principle stated in (_f_). (_f_) When the commander indicates a special gait, whether in the preparatory command or during the execution of the movement, the effect is always to, _hasten the completion of the movement_. This principle will assist in applying the rules in (_b_), (_c_), and (_e_). (_g_) Changes of gait made by elements, without command, in accordance with the above rules, are, except as specially indicated in the commands, changes of one degree. =338.= Any exceptions to the above rules are noted where they occur. =339.= _Gaits for movements on foot._--(_a_) The general principles of gaits for mounted movements apply to movements on foot with the modifications noted in (_b_) to (_g_), below, and such others as are to be readily inferred from the application of the principles of the =School of the Trooper, Dismounted=.