13. States the Subjects of the Law of Nations [19]

14. Equality an Inference from the Basis of International Law [20]

III. Sources of the Law of Nations

15. Source in Contradistinction to Cause [20]

16. The Two Sources of International Law [21]

17. Custom in Contradistinction to Usage [22]

18. Treaties as Source of International Law [23]

19. Factors influencing the Growth of International Law [24]

IV. Relations between International and Municipal Law

20. Essential Difference between International and Municipal Law [25]