The chancellor or foreman of the jury shall be the juror chosen by the majority of the jurors after they shall be sworn, and in case of an equality of votes the juror first sworn shall have a double vote; and when the verdict is returned to the court, it shall be declared by the chancellor or foreman verbally in open court, and taken down by the clerk of the said jury court in writing before the jury is discharged, to be afterwards indorsed and certified on the written order or interlocutor of the Court of Session directing the issue.