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 up. When, however, Captain Napier, who was then a man of great energy and enterprise, commissioned the 'Galatea,' a 42-gun frigate, in 1829, he was allowed to fit her with paddles actuated by winches inboard. About two-thirds of the crew were required to work them efficiently, and a speed of three knots in a calm could be obtained. It was, of course, hard work for the men, but as the, captain said, they did not mind it if they were thus enabled to get into harbour when the wind failed, instead of remaining outside waiting for a breeze. But as we advanced in the application of steam power all such rude mechanical appliances were given up, and in 1830 it was determined to add steam paddle-wheel vessels to the fleet. Five—the 'Dee,' 'Phoenix,' 'Salamander,' 'Rhadamanthus,' and 'Medea'—were then laid down. Taking the 'Medea' as a specimen, her dimensions were:—

They had three masts, and carried sails. With the paddles disconnected, and allowed to revolve freely, they sailed fairly well. They were called steam sloops, and had a few guns on the upper deck for hollow shot and shell. Later on the 68-polinder was employed as a pivot gun at their extremities. A larger class were called steam frigates, and had guns on the main deck.