Definition: st two-thirds of the crew thereof, shall be proved citizens of the United States, or persons not the Subjects of any foreign prince or state, to the satisfaction of the collector, fifty cents per ton: And provided also, that this section shall not extend to ships or vessels of the United States, which are now on foreign voyages, or which may depart from the United States prior to the first day of May next, until after their return to some port of the United States.
9.- 7. That the several bounties and remissions, or abatements of duty, allowed by this act, in the case of vessels having a certain proportion of seamen who are American citizens, or persons not the subjects of any foreign power, shall be allowed only, in the case of vessels having such proportion of American seamen during their whole voyage, unless in case of sickness, death or desertion, or where the whole or part of the crew shall have been taken prisoners in the voyage. Vide article Entry of goods at the Custom-house.
Legal Dictionary 
