These vessels are the oldest cruisers we possess, displacing 7,350 tons, and having a speed of 19½ knots. They are armed with two 9·2-in., ten 6-in., and seventeen smaller guns, with two torpedo tubes. Coal capacity, 1,250 tons. Complement, 544 officers and men. Cost over £400,000. ROYAL ARTHUR CLASS. (Completed 1893-94.) ROYAL ARTHUR. CRESCENT. This class displaces 7,700 tons, and has a speed of 19½ knots. The armament is one 9·2-in., twelve 6-in., and seventeen smaller guns, with two torpedo tubes. There is a steel deck over engines and boilers. Coal capacity, 1,250 tons. Complement, 560 officers and men. Cost, about £400,000. TERRIBLE. (Completed 1898.) This is the largest protected cruiser in the British Navy. She displaces 14,200 tons, and can steam at 22 knots. Her armament consists of two 9·2-in., sixteen 6-in., and many smaller guns, with four torpedo tubes. Over engines and boilers there is a steel deck 6-in. thick. Coal capacity, 3,000 tons. Complement, 840 officers and men. Cost complete, £708,000. DIADEM CLASS. (Completed 1899-1902.) DIADEM. NIOBE. AMPHITRITE. ARIADNE. EUROPA. ANDROMEDA. ARGONAUT. SPARTIATE. Protected cruisers of 11,000 tons and 20½ knots speed, armed with sixteen 6-in. and twelve 12-pounder quick-firing guns, with two torpedo tubes. Engines and boilers are protected by a 4-in. steel deck. Coal capacity, 2,000 tons. Complement, 677 officers and men. Cost, about £550,000. The Niobe is now a unit of the Canadian Navy. MELBOURNE CLASS. (Completed 1913.) MELBOURNE. SYDNEY. These are protected cruisers belonging to the Australian Navy. They displace 5,600 tons, are 430 ft. long, and have a speed of 25½ knots. The armament consists of eight 6-in. and some small quick-firers, with two submerged torpedo tubes. The coal capacity is 1,000 tons. A complement of 400 officers and men is carried. They each cost complete about £350,000. NOTTINGHAM CLASS. (Completed 1914.) NOTTINGHAM. BIRMINGHAM. LOWESTOFT. Three of our latest light cruisers. They are of 5,440 tons, with turbines of 22,000 h.p., giving a speed of 25½ knots. The armament is nine 6-in. and four small quick-firers, with two submerged torpedo tubes. There is a thin armour belt on the waterline. Coal capacity, 1,000 tons. The complement is 400 officers and men. [Illustration] =LION CLASS.= LION, PRINCESS ROYAL. Displacement: 26,350 tons. Speed: 28 knots; Guns: 8 13·5in., 16 4in.; Torpedo tubes: 3. [Illustration] Astern fire: Broadside: Ahead fire: 2 13·5in. 8 13·5in. 4 13·5in. CHATHAM CLASS. (Completed 1912-13.) SOUTHAMPTON. CHATHAM. DUBLIN. These vessels are light cruisers of 5,400 tons, with turbines of 22,000 h.p., and a speed of 25½ knots. They carry an armament of eight 6-in. and four small quick-firers, with two torpedo tubes submerged. Coal capacity, 1,000 tons. Complement, 400 officers and men. Cost complete, about £350,000. FALMOUTH CLASS. (Completed 1911-12.)