2. Two pieces of excellent workmanship, presented by the city of London to the young Duke of Gloucester, son to Queen Anne, to assist him in learning the art of war. 3. Four mortars in miniature, for throwing hand granadoes, invented by Col. Brown. They are fired with a lock like a common gun, but have not yet been introduced into practice. 4. Two fine brass cannon taken from the walls of Vigo in 1704, by the late Lord Cobham. Their breeches represent lions couchant, with the effigy of St. Barbara, to whom they were dedicated. 5. A petard for bursting open the gates of a city or castle. 6. A large train of fine brass battering cannon, 24 pounders. 7. Some cannon of a new invention from 6 to 24 pounders. Their superior excellence consists, first, in their lightness, the 24 pounders not weighing quite 1700 weight, whereas formerly they weighed 5000; the rest are in proportion; and secondly, in the contrivance for leveling them, which is by a screw, instead of beds and coins. This new method is more expeditious, and saves two men to a gun, and is said to be the invention of his Royal Highness the Duke of Cumberland. 8. Brass mortars of thirteen inches diameter, which throw a shell of 300 weight; with a number of smaller mortars, and shells in proportion. 9. A carcase, which they fill at sieges with pitch, tar, and other combustibles to set towns on fire. It is thrown out of an eighteen inch mortar, and will burn two hours where it happens to fall. 10. A Spanish mortar of twelve inches diameter, taken on board a ship in the West Indies. 11. Six French pieces of cannon, six pounders, taken from the rebels at the battle of Culloden, April 16, 1745. 12. A beautiful piece of ordnance, made for King Charles I. when Prince of Wales. It is finely ornamented with emblematical devices, among which is an eagle throwing a thunder bolt in the clouds. 13. A train of field-pieces, called the galloping train, carrying a ball of a pound and half each. 14. A destroying engine, that throws thirty hand granadoes at once, and is fired by a train. 15. A most curious brass cannon made for Prince Henry, the eldest son of King James I. the ornamenting of which is said to have cost 200_l._ 16. A piece with seven bores, for throwing so many balls at once, and another with three, made as early as Henry the Eighth’s time. 17. The Drum-major’s chariot of state, with the kettle drums placed. It is drawn by four white horses at the head of the train, when upon a march. 18. Two French field-pieces, taken at the battle of Hochstadt in 1704. 19. An iron cannon of the first invention, being bars of iron hammered together, and hooped from top to bottom with iron hoops, to prevent its bursting. It has no carriage, but was to be moved from place to place by means of six rings fixed to it at proper distances.