Philosophy in 1919

Die Moderne Staats-Idee by Krabbe, H.

Lectures on Modern Idealism by Royce, Josiah

The Worst Boys in Town And Other Addresses: To Young Men and Women, Boys and Girls by Hill D. D., James L.

Kritik Der Reinen Vernunft by Kant, Inmanuel

Die Philosophie Des Unvollendbar by Lasker, Emanuel