Siege-train. The number and kind of pieces composing a siege-train must altogether depend on circumstances; but the following general principles may be observed in assigning the proportion of different kinds and calibers, and the relative quantity of other supplies, for a train of 100 pieces:
[Guns], about three-fifths the whole number (60); [howitzers], one-fourth (25); [mortars], 10-inch siege, one-eighth (12), 8-inch siege, 3; [Coehorn mortars], in addition to the 100 pieces, 6. Total number of guns, 106.
[Carriages], for guns and howitzers, one-fifth spare, 102; for 10-inch mortars, one-sixth spare, 14; for 8-inch mortars, 4.
[Mortar-wagons], one for each 10-inch mortar and bed, and for three 8-inch mortars and beds, 14.
[Wagons], for transporting implements, intrenching and miners’ tools, laboratory tools and utensils, and other stores, each loaded with about 2700 pounds,—say 140.
[Carts], carrying balls, etc., on the march, 50.
Park [battery-wagons], fully equipped, 28.
Park [forges], fully equipped, 8.