Manual of arms, 30 Manual of the Bayonet. (_See_ Bayonet, Manual of.) Manual of Interior Guard Duty. (_See_ Guard duty.) Manual of Tent Pitching. (_See_ Tent Pitching, Manual of.) Maps: Abbreviations, 323 Contours, 313 Datum plane, 314 Directions, 309 Distances, 312 Ground forms, 316 Hachures, 314 Making (sketching), 322 Orienting, 311 Reading, 313 Ridges, 317 Scales, 313 Signs, 323 Slopes, 315 Stream lines, 319 Valleys, 316 Vertical intervals, 315 Marching, 223 Preparation for, 223 Markmanship, preliminary training, 233 Message blanks, 235 Metal fouling solution for cleaning rifle, 26 Military courtesy, 13 Morse, international code. (_See_ General service code.) National anthem, 17 Noncommissioned officers: Corporal of guard, 352 Insignia, 353 Precedence, 352 Rank, 353 Sergeant of guard, 352 Oath of enlistment, 9 Obedience, 9 Observation, line of. (_See_ Line of observation.) Officers: Insignia, 353 Precedence, 352 Rank, 353 Orienting maps, 311 Outguards, 215 Outposts, 213 Pack, 35 Close, 35 Open, 35 Patrolling, 199 Patrols: Advance guards, 210 Outposts, 213 Personal hygiene, 43 Pickets, 215 Pistol: Cleaning, 104 Practice, 104 Rations: Carried on person, 37 Cooking, 37 Emergency, 41 Forage, 41 Grain, 42 Kinds of, 38 Reading maps, 309 Rear guards, 312 Regulations governing Army, 350 Rifle: Aiming, 242 Care of, 241 Cleaning, 242 Coordination in firing, 241 Trenches, 219