Reading List on Modern Errors
(Updated: Thursday, July 1, 2026)

The Antidote
Thomism
The Essence and Topicality of Thomism — Fr. Reginald Garrigou-Lagrange (О.Р.), 1945
The Note of Catholicity in Scholastic Theology — Msgr. Joseph Clifford Fenton, 1948
Authority of St. Thomas — Fr. Santiago Ramírez (O.P.), 1952
The Errors
Modernism
Catechism on Modernism According to the Encyclical ‘Pascendi dominici gregis’ of His Holiness Pius X — Fr. Jean Baptiste Lemius, 1908
Old Truths, Not Modernist Errors — Rev. Fr. Norbert Jones (C.R.L.), 1908
Modernism and Modern Thought — Fr. Joseph Brampton (S.J.), 1913
Where is the New Theology Leading Us? — Fr. Reginald Garrigou-Lagrange (О.Р.), 1934
Does Catholic Doctrine Change? — Fr. Francis J. Connell (C.SS.R.), 1947
Truth and Novelty in Theology — Fr. Mariano Cordovani (O.P.), 1948
Two Currents in Contemporary Catholic Thought — Msgr. Joseph Clifford Fenton, 1948
The Structure of the Encyclical “Humani Generis” — Fr. Reginald Garrigou-Lagrange (О.Р.), 1953
The Semicentennial of the Lamentabili and the Pascendi— Msgr. Joseph Clifford Fenton, 1957
The Sacrorum Antistitum and the Background of the Oath Against Modernism — Msgr. Joseph Clifford Fenton, 1960
False Ecumenism
Catholics and ‘Interfaith’ Groups — Fr. Francis J. Connell (C.SS.R.), 1941
The Sources of Modern Attacks Against the Church — Msgr. Joseph Clifford Fenton, 1946
A Recent Decree of the Holy Office — Fr. Francis J. Connell (C.SS.R.), 1948
An Important Roman Instruction — Fr. Francis J. Connell (C.SS.R.), 1950
Co-Operation of Catholics in Non-Catholic Religious Activities [1], [2], [3] — Fr. Francis J. Connell (C.SS.R.), 1951
Catholic Ecumenism: The Reunion of Christendom in Contemporary Papal Pronouncements [1], [2] — Fr. Edward Francis Hanahoe, 1953
Brotherhood in Catholic Theology — Msgr. Joseph Clifford Fenton, 1955
Ecclesiology
The Use of the Terms Body and Soul with Reference to the Catholic Church — Msgr. Joseph Clifford Fenton, 1944
Membership in the Church — Msgr. Joseph Clifford Fenton, 1945
The Catholicity of the Church [1], [2], [3] - Msgr. Joseph Clifford Fenton, 1947
The Theological Proof for the Necessity of the Catholic Church [1], [2], [3] — Msgr. Joseph Clifford Fenton, 1948
Theological Content of Humani Generis — Fr. Francis J. Connell (C.SS.R.), 1950
The Lesson of the Humani Generis — Msgr. Joseph Clifford Fenton, 1950
The Meaning of the Church’s Necessity for Salvation [1], [2], [3] — Msgr. Joseph Clifford Fenton, 1951
Necessity of the Church for Salvation in Selected Theological Writings of the Past Century — Fr. John J. King (O.M.I.), 1960
Members of the Church and of the Mystical Body — Fr. John J. Canfield, 1961
Two Statements about the Necessity of the Catholic Church for the Attainment of Eternal Salvation — Msgr. Joseph Clifford Fenton, 1962
Magisteriology
The Ordinary Magisterium of the Church and its Organs — Fr. Jean-Marie-Antoine Vacant, 1887
The Doctrinal Value of the Ordinary Teaching of the Holy Father in View of Humani Generis — Fr. Edmond D. Benard, 1951
The Value of Encyclicals in Light of “Humani Generis” — Fr. Joachim Salaverri (S.J.), 1952
Church-State Relations
Catholic Doctrine and ‘The Religion of the State’ — Msgr. George Shea, 1950
The Status of a Controversy — Msgr. Joseph Clifford Fenton, 1951
Principles Underlying Traditional Church-State Doctrine — Msgr. Joseph Clifford Fenton, 1952
Duties of the Catholic State In Regard to Religion — Cd. Alfredo Ottaviani, 1953
The Teachings of the “Ci Riesce” — Msgr. Joseph Clifford Fenton, 1954
The Holy Father’s Statement on Relations Between Church and State — Msgr. Joseph Clifford Fenton, 1955
Liturgy
A Critical Study of the New Mass “The Ottaviani Intervention” — Fr. M.L. Guérard des Lauriers (O.P.), 1969
The Offertory of the Mass and the New Ordo Missæ — Fr. M.L. Guérard des Lauriers (O.P.), 19xx
