Pope Leo Xiii, His Life and Letters
A Circular Letter of Pope Leo the Twelfth [3 May, 1824] to all the Patriarchs, ... Archbishops, and Bishops of the Roman Catholic Church; and the Bull of Jubilee for the year 1825. Translated from the original Latin, with an introduction and notes. [Reprinted from the Wesleyan Methodist Magazine for December, 1824.]
The Encyclical Letter of Pope Leo the XII. to His Venerable Brethren, the Patriarchs, Primates, Archbishops, and Bishops, of the Catholic Church, with an English Translation of the Same. To which are Annexed Pastoral Instructions by the R.C. Archbishops and Bishops, to the Clergy and Laity of Their Communion Throughout Ireland. [The Text of the Encyclical "Ubi Primum" of 3 May 1824. Published by the Roman Catholic Hierarchy of Ireland, Together with Their Joint Pastoral Instructions, on the Subject.]
The tome of Pope Leo the Great. Latin text
Discours aux fidèles de Rome et du monde catholique depuis son élection dans le Vatican
Letters and Sermons of Pope St. Leo I (the Great)
Sermons
The Life of Pope Leo XIII ...
Pope Leo XIII.
A Circular Letter of Pope Leo the Twelfth
Sermons de Saint Leon Pape surnommé Le Grand
LIFE IN ABUNDANCE
The Encyclical Letter of Pope Leo the XII