The charter party shows that it was the intention of the parties to confer upon the charterer's authority to flx the freight to be paid by cargo that might be shipped under bills of lading. The cargo in question was shipped under bills of lading signed by the purser, by which the freight to be paid on each shipment was fixed. These bills of lading were authorized *530contracts which., as between the shipper and the ship, fix the freight to be paid by each shipment, notwithstanding that provision is made in the charter party for a shipowner’s lien for the charter money. By virtue of this provision the shipowner may enforce a lien upon the cargo for the freight stated in the respective bills of lading, but for no more. Let the libelants have a decree with an order of reference to ascertain the amount of such freight.