[4] This precaution will also be adopted when magazines are not charged.
[5] For the maximum penetration of the pointed bullet in various substances see Appendix, _Field Entrenchments_, of this series.
[6] Tables giving the maximum height of the trajectory of the Mark VI and VII bullets at different ranges, together with tables showing the angles of descent for the last 100 yards of each range, will be found in _Musketry Regulations_.
[7] This target is described in para. 152, _Musketry Regulations_, Part II.
[8] For description of and directions for use of Legret Aim-Teacher, the Aim-Corrector, and Aiming-Disc, see Appendix. A list of necessary appliances for aiming instruction, including aiming and firing rests, etc., will be found in para. 6 of this section.
[9] The position for aiming when lying will be taught previously to this practice.
[10] Shooting from the left shoulder is not to be permitted unless it is rendered necessary by defective eyesight in the opinion of the Company Commander.
[11] See Fig. 33 illustrating this point. See also _Drill and Field Training_ of this series, Fig. 41, and _Field Entrenchments_ of this series, Figs. 67 and 68.
[12] For directions for adjusting sights in the lying position, see Sec. 26, para. 4 (iv).
[13] The command _Load_ is only required for drill purposes, or when charging rifles before leaving quarters on service. It is not used in fire orders.
[14] The advantages and disadvantages of different forms of cover, such as hedges, banks, walls, ridges, folds of ground, bushes and undergrowth, knolls and small hollows, buildings and enclosed spaces, rocks, mounds of earth, skyline and continuous cover running diagonally to the line of advance, or which runs or zigzags across the line of advance, are discussed in this section.
[15] Instructions for training both the eyesight and hearing for use by night are contained in Sec. 41 of _Drill and Field Training_ of this series.
[17] Military features of importance in connection with ground and cover are dealt with in _Drill and Field Training_ and _Field Entrenchments_ of this series.
[19] See Sec. 28 of _Drill and Field Training_ of this series for information as to _communications_, for which, with information as to _ammunition supply_ see also _Infantry Training 1914_. _Infantry covering fire_ is dealt with in Sec. 44, para. 13, of this book. Arrangements for covering fire by machine-guns are dealt with in _Machine-Gun Training_ of this series (see also _Field Service Regulations_ and _Infantry Training, 1914_).