Article 345 — A.dditionalevidence

(1) The parties 10 an appeal shall not be entitled to proc..;e addi- tional evidence in the Appellate Court. Provided that, where : (a) the court from whose decree or order the appeal is preferred has refused to admit evidence which ought to have been admitted; or (b) the Appelate Court requires any document to be produced or any witness to be examined to enable it pronounce judg- ment, or for any other substantial cause, the Appellate Court may, of its own motion or upon an appli- cation for permission to call additional evidence being made under Art. 3rT (3) , allow such ~vidence or document to be produced, or witness to be examined. (2) Whenever additional evidence is allowed to be produced by an Appellate Court, the court shall record the reason for its admi- ssion.