Promissory Oaths 552 Engagements of Kings towards Subjects 552 Public Treaties 552 Their Interpretation 553 Obligation to repair Injury 553 Rights by Law of Nations 554 Those of Ambassadors 554 Right of Sepulture 554 Punishments 554 Their Responsibility 555 Insufficient Causes of War 556 Duty of avoiding it 556 And Expediency 556 War for the sake of other Subjects 556 Allies 556 Strangers 556 None to Serve in an Unjust War 556 Rights in War 557 Use of Deceit 557 Rules and Customs of Nations 557 Reprisals 557 Declarations of War 557 Rights by law of nations over Enemies 558 Prisoners become Slaves 558 Rights of Postliminium 558 Moral Limitation of Rights in War 558 Moderation required as to spoil 559 And as to Prisoners 559 Also in Conquest 559 And in Restitution to right Owners 559 Promises to Enemies and Pirates 559 Treaties concluded by competent Authority 560 Matters relating to them 561 Truces and Conventions 561 Those of Private persons 561 Objections to Grotius made by Paley unreasonable 561 Reply of Mackintosh 561 Censures of Stewart 562 Answer to them 562 Grotius vindicated against Rousseau 565 His Arrangement 565