Trial this of a New frigate.
--The Paris correspondence (April 3) of the London Times, says:‘ A letter from Lincent of the inst says that the trial trip of the iron-plated frigate Couroune has been eminently successful. She is by far the most perfect frigate of that class yet built, in France. She goes through the water as well under talk as by steam, and she answers her helm admirably.
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