See this legally free audiobook and ebook:

  • The work (audiobook/ebook) includes the following encyclicals and other letters (as listed on LibriVox):
    • On the Evils Afffecting Modern Society “Inscrutabili”;
    • Socialism, Communism, Nihilism “Quod Apostolici Muneris”;
    • The Study of Scholastic Philosophy “Aeterni Patris”;
    • Christian Marriage “Arcanum Divinae”;
    • Freemasonry “Humanum Genus”;
    • The Christian Constitution of States “ Immortale Dei”;
    • Human Liberty “Libertas Praestantissimum”;
    • The Right Ordering of Christian Life “Exeunte Jam Anno”;
    • On the Chief Duties of Christians as Citizens “Sapientiae Christianae”;
    • The Condition of the Working Classes “Rerum Novarum”;
    • Allegiance to the Republic “Au Milieu des Sollicitudes”;
    • The Pope and the Columbus Tercenary “Quarto Abrupto Saeculo”;
    • The Study of Holy Scripture “Provindentissimus Deus”;
    • The Reunion of Christendom “Praeclara Gratulationis Publicae”;
    • Catholicity in the United States “Longuinque Oceani”;
    • To the English People “Amantissima Voluntatis”;
    • The Unity of the Church “Satis Cognitum”;
    • Anglican Orders “Apostolicae Curae”;
    • The Prohibition and Censorship of Books “Officiorum ac Munerum”;
    • The Holy Spirit “Divinum Illud”;
    • True and False Americanism in Religion “Testem Benevolentiae”;
    • On the Consecration of Mankind to the Sacred Heart of Jesus “Annum Sacrum”;
    • Christ Our Redeemer “Tametsi”;
    • Christian Democracy “Graves de Communi”;
    • The Religious Congregations in France;
    • Congratulations to the American Hierarchy;
    • The Most Holy Eucharist “Mirae Caritatis”;
    • The Holy Scriptures; The Biblical Commission “Vigilantiae”;
    • The Church in the Philippines; and
    • Review of His Pontificate.

In remembrance of Pope Leo XIII (d. 20 July 1903), vicarius Ss. Petri et Pauli, faithful shepherd and teacher. For other online texts and legally free ebooks, you may access the List of Free eBooks (Arranged by Title) and the List of Free eBooks (Grouped by Subject).