Officers 5 Non-commissioned Officers 15 Troopers 90 Drivers 60 Artificers 8 Cars, heavy 3 Cars, light 3 Curricle ammunition carts, or tumbrils 6 Bouches a feù 42 Ammunition, heavy shell 260 Ammunition, light shell, or case shot 1200 Making a total of Ammunition of all sorts 1460 rounds. Battery of 42 bouches a feù. Cars, tumbrils, and forge cart 13 Officers, staff artificers, troopers, and drivers 172 Troop, ammunition, and draft horses 164 The number of sections in a sub-division may vary according to the actual effective strength of the troop at any time; so that the distribution may be accommodated to the numbers, without departing from this principle of constitution. The number of men and horses above stated is precisely the same as that of a troop of horse artillery. The reserve of ammunition is supposed to proceed with the park. THE EQUIPMENT OF ROCKET CAVALRY. Plate 1st represents the mode of equipment for carrying Rockets on horseback, as it was arranged during the course of experiments, which were carried on, under my direction, at Bagshot, in 1811; as it was subsequently carried into actual service, under Captain BOGUE, with the Allied armies in Germany, in the ever memorable campaign of 1813; and as it is at present proposed to equip the new corps of Rocket Horse Artillery, established on the 1st of January, 1814, by Earl MULGRAVE, Master General of the Ordnance, and composed of two troops, under the command of Lieutenant Colonel FISHER, of the Royal Artillery.