§1. What is _navigation_?
§2. What is _tunnage_? _Tunnage duties_? For what purpose were these
duties laid? Why were they called _discriminating_ duties?
§3. What has been their effect? What has caused their discontinuance?
§4. How are vessels registered?
§5. What is a _manifest_? A _clearance_?
§6. At whose request are passports furnished to vessels? What is a
_passport_? By whom given?
§7. How is the safety of passengers and crew provided for?
§8. Define _quarantine_. What has congress enacted in relation to
quarantines?
§9. Why was power given to congress to regulate _internal_ commerce, or
commerce among the states?
§10. Why the power to regulate commerce with the Indian tribes?