maritime privilege/lien

The maritime 'privilege' or lien is adopted from the civil law, and imports a tacit hypothecation of the subject of it. It is a 'jus in re,' without actual possession or any right of possession. It accompanies the property into the hands of a bona fide purchaser. It can be executed and divested only by a proceeding in rem. This sort of proceeding against personal property is unknown to the common law, and is peculiar to the process of courts of admiralty… But this privilege or lien, though adhering to the vessel, is a secret one; it may operate to the prejudice of general creditors and purchasers without notice; it is therefore 'stricti juris,' and cannot be extended by construction, analogy, or inference.