—Use of, 34 —Stones, how disposed, 34. STORING of fixed ammunition, 103-4. STRAPPING SHOT and shells, 93-4. STRENGTH: Of ice, 156 —Of rope, 156. SWELL of the muzzle, 14. TABLES: Of charges, 62 —Of ranges, 68-9, 70-1-2 —Of windage, 81-2 —Of weights of projectiles, 106-7 —Of measures, 159 —Of avoirdupois weight, 159. TACTICS of field artillery, 44-5-6-7-8-9-50. TANGENT SCALE, 16. TIME OF FLIGHT for siege-mortars, 67 —How found, 149. TRAJECTORY, 64. TRANSPORTATION: Of artillery by sea, 161-2 —Of siege-guns, 129. TRAVERSE circles, 135. TRUNNIONS: Definition, 14 —Use, 19 —Position in mortars, 31 —Beds, 129. TRUE WINDAGE: Definition, 15. UNSPIKING cannon, 21. VALENCIENNES composition, 117. VELOCITY: Of balls, 147 —Loss of, by resistance of air, 147 —Of sound, 151 —Loss of, by windage, 81. VENT: Definition, 15 —Position and diameter of, 16. VERTICAL FIRE, 31. WADS: Grommet, 99 —Junk, 99 —Hay, for firing hot shot, 98. WATER: Weight of, 161 —Allowance for a man and a horse, 154. WEIGHTS: Guns, 27 —Columbiads, 30 —Howitzers, 29 —Mortars, 33 —Projectiles, 106-7 —Of wheels for field carriages, 144; and for siege-carriages, 144 —Proportion between weights of shot, 95 —Of cast-iron shot or shell, how determined, 95 —Quantity of powder to fill a shell, how found, 96 —Carried by horses, 152 —Carried by an infantry soldier, 154. WHEELS: Field-carriage, size and weight, 144 —Siege carriage, size and weight, 144 —Parts of, 124. WINDAGE: Definition, 80 —Amount, 81-2 —Loss of velocity by, 81 —Advantage of a reduction of, 81. WIRES, pointing, 56.