The Evidence in the Case; A Discussion of the Moral Responsibility for the War of 1914, as Disclosed by the Diplomatic Records of England, Germany, Russia, France, and Belgium

The Reckoning; A Discussion of the Moral Aspects of the Peace Problem, and of Retributive Justice as an Indispensable Element

The War and Humanity; A Further Discussion of the Ethics of the World War and the Attitude and Duty of the United States

The Passing of the New Freedom

The Evidence in the Case: An Analysis of the Diplomatic Records Submitted by England, Germany, Russia, and Belgium in the Supreme Court of Civilization, and the Conclusions Deducible as to the Moral Responsibility for the War