The jury having been thus instructed, retire to the jury room in charge of a sworn officer, where they must be kept together deliberating until they reach their verdict, or until discharged by the court if it shall appear impossible for them to agree upon a verdict.

1 Hughes' Instructions, Secs. 1, 2. 2 Hughes' Instructions, Secs. 6, 44.

3 Hughes' Instructions, Sec. 30.

The jurors take with them the indictment and instructions; also any document, weapon, or thing which may have been introduced in evidence. Their verdict, of course, must be based upon the evidence actually before them, and they are strictly forbidden to consider anything which is not in evidence, and which may have been withdrawn from them by the rulings of the court.