Chapter XXXIII: §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?