An innkeeper or keeper of a boarding house is liable for all losses of, or injuries to, personal property placed by his guests or boarders under his care, unless occasioned by an irresistible superhuman cause, by a public enemy, by the negligence of the owner, or by the act of someone whom he brought into the inn or boarding house, and upon such property the innkeeper or keeper of a boarding house has a lien and a right of detention for the payment of such amount as may be due him for lodging, fare, boarding, or other necessaries by such guest or boarder; and the said lien may be enforced by a sale of the property in the manner prescribed for the sale of pledged property.