In the midst of a forest or in the middle of a voyage an old or afflicted merchant might with confidence put in the custody of a depositary some valuable article with certain secret mark, and go on his way. On his sending this information to his son or brother, the latter may ask for the sealed deposit. If the depositary does not quietly return it, he shall not only forfeit his credit, but be liable to the punishment for theft besides being made to restore the deposit.