They varied in size from 1200 to 1800 tons. The amount of coal carried in proportion to their size was large, owing to the great consumption with those early engines. Thus the 'Sidon,' one of these frigates, could stow 600 tons of coal. The general armament for this class consisted of fourteen 32-pounders on the main deck and four 68-pounders on the upper deck. One of this type, the 'Terrible,' of 1830 tons, was considered a very fine vessel, and performed efficient service in the Black Sea during the Crimean War. Paddle-wheel steamers were, moreover, represented in our navy until quite recent years. All the Royal yachts are even now paddle-wheel, as this application of steam power allows of such excellent accommodation and comfort. Another advantage is that it enables a comparatively large vessel to be constructed on a light draught of water.
This review of fleets half a century ago may fitly conclude with a brief notice of an operation carried out by a British naval squadron composed of sailing ships supplemented by paddle steamers. This was the bombardment of Acre in the year 1840. Steam played an unimportant part in the action, and the incident is chiefly valuable as showing the power of the old ships and their armaments when opposed to forts which could be attacked from the sea.
Such an attack must be considered hazardous or the reverse, according to the circumstances of the case. When to Lord Exmouth was entrusted the service of reducing the stronghold of Algiers, in the year 1816,
