
    Murray v. General Mutual Insurance Company.
    When a plaintiff transfers his interest after the commencement of the suit, it rests entirely in the discretion of the court, whether the assignee shall be substituted as plaintiff, under § 121 of the Code.
    
      (April 28, 1853.)
    Ho such order of substitution will be made, unless special circumstances are shown to satisfy the court of its propriety or necessity; and, in all cases, it will be made a condition, that the original plaintiff the assignor, shall not be examined as a witness on behalf of the assignee.
   These points were so ruled by Mr. Justice Dues, at special term, after consultation with all the judges, and with their concurrence.  