■ A party who has purchased the vessel while she was a wreck can in no case be regarded as a salvor, in .the sense of the maritime law. Otherwise the court would be called upon to decree to him a share of the property saved as compensation, and then decree the surplus to him as owner. A libel brought .in such case can only be .to obtain, by the intervention of the court, a confirmation of the sale to him and of his title, and there is no authority in law for such a proceeding.