In case the judgment, sentence or decree of the court below be reversed, the Supreme Court shall render such judgment, sentence or decree as the court below should have rendered, unless it be necessary, in consequence of its decision, that some matter of fact be ascertained, or damages be assessed by a jury, or where the matter to be determined is uncertain; in either of which cases the suit, action or prosecution shall be remanded for a final decision; and when so remanded shall be proceeded with in the court below according to the direction of the Supreme Court, or according to law in the absence of such directions.