Apologetics

“But sanctify the Lord Christ in your hearts, being ready always to satisfy every one that asketh you a reason of that hope which is in you.But with modesty and fear, having a good conscience: that whereas they speak evil of you, they may be ashamed who falsely accuse your good conversation in Christ.” (1 Peter 3:15-16)

This page contains a list of legally free or accessible ebooks/texts that use reasoned arguments, based on naturally known and/or positively revealed truths, to: explain or defend the Faith in response to objections or calumnies (apologetics); demonstrate the falsehood of contrary opinions (polemics); or show how non-Catholic opinions essentially agree with and lead to Catholic truth (irenics). It does not include catechisms or general explanations that do not respond to particular issues.

For related texts, see the subject listing most relevant to the individual reader’s interest, of which Church and Ecclesiology, God and Christ, Grace and Salvation, Revelation and Faith, and Theology (with the latter’s sub-list on Fundamental Theology) might be the likely lists of interest; and the posts under the category Apologetics.

I. General Apologetics

Against Heresies, or Refutation and Overthrow of Knowledge falsely so-called [or, Adversus Haereses], by St. Irenaeus of Lyons (c.180 AD), trans. Alexander Roberts and William Rambaut; from Ante-Nicene Fathers, Vol. 1, eds. Alexander Roberts, James Donaldson, and A. Cleveland Coxe (Buffalo, NY: Christian Literature Publishing Co., 1885). May be read online at New Advent (rev. and ed. Kevin Knight), with active links to relevant Catholic Encyclopedia articles and Scripture passages; and on The Augustine Club. [NB, A defense of Christianity against Gnosticism, which also shows that the early Church had a Catholic view of sacramental grace, the Roman primacy, the bishops as successors of the apostles, etc. Books I and II are somewhat difficult summaries of Gnostic beliefs to be refuted, so it may be better to start with Book III, which begins the summary of Christian teaching.]
And You Will Know the Truth: How to Defend and Explain the Catholic Faith, by Sebastian R. Fama. Available at Internet Archive in multiple formats. Apologetics.
Annals Australasia (455 Selected Articles and various pamphlets), by Dr. Leslie Rumble, Fr. Paul Stenhouse, Ph.D., et al. Available online at the Wayback Machine (which is the 5 September 2015 snapshot of the portal Sean O Lachtnain’s Home Page, now sadly defunct) [N.B., This provides access to many very useful resources on faith, morals, and apologetics. The webpage title is actually: “455 Selected Articles from Back Issues of “Annals Australasia”—formerly known as “Annals Australia”, “Radio Replies” and the two ancillary volumes, and Various Pamphlets by former Editor of “Annals” — Dr. Leslie Rumble, and Current Editor of “Annals” and Author of Catholic Answers to “Bible” Christians- available from Chevalier Press by Fr. Paul Stenhouse, M.S.C., Ph.D. — Current “ANNALS” Editor”].
Apologetica; elementary apologetics for pulpit and pew, by Patrick Albert Halpin (New York, J.F. Wagner, 1905). With Imprimatur. Available at Open Library and Internet Archive (Digitizing sponsor: The Library of Congress, Book contributor: The Library of Congress) with a second copy here.
Apologetics and Evangelism for Catholics, by Adadzie, Godwin Delali (GADEL). Available at Internet Archive. A short tract that aims “to demonstrate some Scriptural texts that support some Catholic beliefs and practices, hence answering common objections non-Catholic Christians hold against the Catholic Church”.
Apologie Scientifique de la Foi Chrétienne, 2e edition, par F. Duilhé de Saint-Projet (Paris: Librairie de la Societée bibliographique; Toulouse, 1885). Avec l’approbation du Pape Leo XIII. Disponible en Internet Archive et Open Library.
Catechism: doctrinal, moral, historical, and liturgical: with answers to the objections drawn from the sciences against religion, by Patrick Power (Dublin: J. Duffy; London: Burns and Oates, 1905). With episcopal approbation. Available at Internet Archive and Open Library (Digitizing sponsor: MSN, Book contributor: Kelly Library, University of Toronto).
Christian Apologetics: A Rational Exposition and Defense of the Catholic Religion, in 2 volumes, by the Rev. Walter Devivier, S.J., translated from the original French, edited and augmented by the Rev. Joseph C. Sasia, S.J. (New York: Joseph F. Wagner; London: B. Herder, 1924). With Imprimatur and the approbation of the Holy See. The 2 volumes are available at HathiTrust and at Internet Archive: Volume 1 and Volume 2.

II. Addressed to Non-Christians

Answers to a Jewish enquirer, by Théodore Ratisbonne (London: Catholic Truth Society, 1920). Available at Internet Archive in multiple formats (Digitizing sponsor: MSN, Book contributor: Kelly Library, University of Toronto). Apologetics, Evangelization, Judaism.
The Bible and Rationalism; or, Answer to Difficulties in the Books of Moses, by John Thein. (St. Louis, Mo., B. Herder, 1901). Part 1 of 4. With Imprimatur. Available on Internet Archive [N.B. Actually Part I but the Internet Archive index page says it’s Volume III.]
The Bible and Rationalism; or, Answer to Difficulties in the Historical, Didactic, and Prophetical Books of the O.T. [Old Testament], by John Thein. (St. Louis, Mo., B. Herder, 1901). Part 2 of 4. With Imprimatur. Available at Internet Archive.
The Bible and Rationalism; or, Answer to Difficulties in the Books of the New Testament, by John Thein. (St. Louis, Mo., B. Herder, 1901). Part 3 of 4. With Imprimatur. Available on Open Library and Internet Archive [N.B. Actually Part III but the index page image is incorrectly that of Volume IV.]
The Bible and Rationalism; or, Answer to Difficulties in the Mosaic Cosmogony, Anthropology, and Biblical Chronology, by John Thein. (St. Louis, Mo., B. Herder, 1901). Part 4 of 4. Concerns the Bible and scientific theories. With Imprimatur. Available on Internet Archive.
Catechism: doctrinal, moral, historical, and liturgical: with answers to the objections drawn from the sciences against religion, by Patrick Power (Dublin: J. Duffy; London: Burns and Oates, 1905). With episcopal approbation. Available at Internet Archive and Open Library (Digitizing sponsor: MSN, Book contributor: Kelly Library, University of Toronto).
Christian Apologetics: A Rational Exposition and Defense of the Catholic Religion, in 2 volumes, by the Rev. Walter Devivier, S.J., translated from the original French, edited and augmented by the Rev. Joseph C. Sasia, S.J. (New York: Joseph F. Wagner; London: B. Herder, 1924). With Imprimatur and the approbation of the Holy See. The 2 volumes are available at HathiTrust and at Internet Archive: Volume 1 and Volume 2.
The Divinity of Christ, by Joseph Rickaby, S.J. (London, Edinburgh: Sands & Company; St. Louis, Mo.: B. Herder, 1906). With Imprimatur. Part of the Westminster Lectures (Second Series), edited by the Rev. Francis Aveling. Available in various formats at Open Library and Internet Archive.
“His Only Son”: The Truth of the Divinity of Christ, by William F. Robison, S.J. (St. Louis, Mo.; London: B. Herder, 1918). With Imprimatur. Available in various formats (pdf, text, epub, kindle/mobi, etc.) at Internet Archive.
Jesus Christ is God, by Rev. Walter Elliott [1849-1928] (St. Paul, Minnesota: Catholic Truth Society of America). Pamphlet No. 18. Available in various formats (pdf, epub, kindle/mobi, etc.) at Internet Archive. The text may also be found on volume II, pages 77-100, of the work: The Masterpieces of Catholic Literature, Oratory and Art, Volume 2 of 3 [edited by Hyacinthe Ringrose (New York: E.J. Sweeney, 1910)]. With the approbation of John J. Monaghan, Bishop of Wilmington. Available in various formats at Internet Archive and Open Library; and in pdf format at the University of Toronto Libraries. [N.B., The title/copyright page of the text is missing. Publishing details are taken from the Internet Archive index page.]
The True Religion: Being the Grounds of the Catholic Faith, by Rev. E.C. [Ernest Charles] Messenger (London: Catholic Truth Society, 1915). With Imprimatur. Available at Internet Archive.

III. Addressed to Non-Catholic Christians

Address of the Roman Catholics to their fellow citizens, of the City and State of New York (1840). Available at Internet Archive.
An Account of the Conversion of the Reverend John Thayer: Formerly a Protestant Minister of Boston, Written by Himself, to which is added A Letter to His Brother, and His Controversial Writings, by the Editors of the U.S. Catholic Press (Hartford, Conn., 1832). Available at Internet Archive and Open Library. Another edition with older spelling (Lisbon: Na Offic. Patr. de Francisco Luiz Ameno, 1788), with English e Portugues on opposite pages, is available at Internet Archive and Open Library.
[Against the Errors of the Greeks] Contra Errores Graecorum, by St. Thomas Aquinas, O.P., translated by Peter Damian Fehlner, F.I., re-edited and missing chapters supplied by Joseph Kenny, O.P. May be read online at DHS Priory of the Immaculate Conception.
“Anaphoneo! Mary is the Ark of the New Covenant” (Presentation Notes), by Deacon Jeff Drzycimski. Available in PDF format on this page of Catholic Adult Faith. [N.B., Provides citations of the Holy Scriptures, the Fathers, and the Founders of Protestantism that attest to the truth of Catholic teaching on the Blessed Mother]
Apologia Pro Vita Sua; Being a History of His Religious Opinions (1865 edition and after). May be read online (here) at Newman Reader (London, New York, Bombay, and Calcutta: Longmans, Green, and Co., 1908), and available in various formats at Internet Archive and Open Library (London: Longmans,Green, 1895), Many Books.net (London, New York: Longmans, Green, and Co., 1990), at Internet Archive and Open Library (London, New York: Longmans, Green, 1888), and at Internet Archive and Open Library (London: Longmans, Green, Reader, and Dyer, 1882). An MP3 audiobook is available at Libri Vox.
Apologia Pro Vita Sua; Being a Reply to a Pamphlet Entitled “What, then, does Dr. Newman mean?” (1864 edition). Available in various formats at Open Library and Internet Archive (London: Longman, Green, Longman, Roberts, and Green, 1864), as well as at Project Gutenberg and Many Books.net (London: J. M. Dent & Sons; New York: E.P. Dutton & Co.). An incompletely proofread copy based on this edition may be read online at the Modern History Sourcebook.
On the Apostolical and Infallible Authority of the Pope: when Teaching the Faithful, and on his Relation to a General Council, Francis Xavier Weninger (New York : D.& J. Sadlier ; Cincinnati, OH : J.P. Walsh, 1868). Available at Internet Archive and Open Library. [N.B., It has no Imprimatur, but the author is stated to be a missionary of the Society of Jesus {when the members of that order were still reliably orthodox}, and the content appears to be a faithfully Catholic demonstration from faith, history and reason of papal infallibility.]
The Beauty and Truth of the Catholic Church: Sermons from the German, adapted and edited, Volume II, by the Rev. Edward Jones, with an Introduction by the Most Rev. John Ireland (St. Louis, London: B. Herder, 1913). With Imprimatur. Available at Internet Archive [N.B., This volume collects discourses on the sacraments of baptism, confirmation, and the Eucharist.]
The Beauty and Truth of the Catholic Church: Sermons from the German, adapted and edited, Volume III, by the Rev. Edward Jones, with an Introduction by the Most Rev. John Ireland (Freiburg (Baden); St. Louis, Mo.; London: B. Herder, 1913). With Imprimatur. Available at Internet Archive and Open Library [N.B., This volume collects discourses on the sacraments of penance, matrimony, orders, and unction, and on education. The OL index age incorrectly provides the image of Volume II.]
The Beauty and Truth of the Catholic Church: Sermons from the German, adapted and edited, Volume IV, by the Rev. Edward Jones, with an Introduction by the Most Rev. John Ireland (St. Louis, Mo.; London: B. Herder, 1916). With Imprimatur. Available at Internet Archive [N.B., This volume collects discourses on God, Christ, and grace.]
The Beauty and Truth of the Catholic Church: Sermons from the German, adapted and edited, Volume V, by the Rev. Edward Jones, with an Introduction by the Most Rev. John Ireland (St. Louis, Mo.; London: B. Herder, 1916). With Imprimatur. Available at Internet Archive [N.B. This volume includes discourses on the moral law and the last things.]
The Bible and the Rule of Faith, by Abbe Louis Nazaire Bégin, translated by G.M. Ward (London, Burns and Oates; Quebec: John Barrow, 1875). With Imprimatur. Available in various formats at Internet Archive and Open Library.
The Biblical Basis for Praying to Mary and for Catholic Teachings on Mary [Tract]. Available in PDF format at Most Holy Family Monastery. [Caution: The website is sedevacantist (believes that the papal office is presently vacant) and rejects the Second Vatican Council] Please avoid reading other texts on the website.]
The Blessed Virgin in the Fathers of the First Six Centuries, by Thomas Livius, C.Ss.R., with a Preface by Herbert Cardinal Vaughan, Archbishop of Westminster (London: Burns and Oates; New York, Cincinnati, Chicago: Benziger, 1893). May be read online, and available in various formats (pdf, epub, kindle/mobi, text, etc.) at Internet Archive. Also available at Google Books.
The Book of Armaments: Defending Your Catholic Faith, by Gary Michuta (Eastern Catholic Re-Evangelization Center). Available in PDF format (on this page) at the Saint Thomas Chaldean Catholic Church, and at Scribd.com.
A Calendar of Scottish Saints, Second Edition Revised & Augmented, by Dom Michael Barrett, O.S.B. (Fort-Augustus: Abbey Press, 1919). With Imprimatur. Available in many formats at Manybooks.net.
The Canon of Scripture and Salvation: The Bible came out of the Catholic (Universal) Church and so does Salvation [Tract], by Frederick P. Pogorzelski. Available in PDF and DOC format and may be read online at Catholic Evangelism.
The Canon of the Old Testament, by Tobias Mullen, Bishop of Erie (New York: FR. Pustet & Co., 1892). Available in various formats (pdf, txt, kindle/mobi, epub, etc.) at Internet Archive and Open Library, with a 2^ndcopy at Internet Archive and Open Library. [N.B., On the same subject, see also the essay, “What’s with these “extra” books in the Bible?” on Catholic Bridge.]
Catena aurea or, A golden chain of evidences demonstrating from “analytical treatment of history,” that papal infallibility is no novelty; a memorial of the Papal jubilee, June 16, 1871 to honor the “Annos Petri completos” of our Holy Father, Pope Pius the Great,by an Old Catholic (Perry County, Ohio: St. Joseph’s College, 1871). Available in various formats at Open Library and Internet Archive. [N.B., While author refers to himself as an “Old Catholic”, this appears to be an ironic use of the term, since the work sets out to refute the thesis of Dollinger and the “Old Catholic” sect. The work is therefore orthodox. However, please exercise caution in view of certain statements tending to anti-Semitism.]
Cathedra Petri: or, The titles and prerogatives of St. Peter, and of his see and successors; as described by the early fathers, ecclesiastical writers, and councils of the church, by C.F.B. Allnatt (London: Burns and Oates, 1883). Available at Internet Archive and Open Library. The 1879 edition is available at Internet Archive and Open Library.
“Catholic”: an essential and exclusive attribute of the true Church, by Monsignor Thomas John Capel. (New York: Wilcox & O’Donnell, 1884) Available at Internet Archive and Open Library. No Imprimatur, but the author is domestic prelate of Pope Leo XIII, and its content is Catholic.
The Catholic Church and the Gospels, by Charles G. Mortimer (Dublin: Catholic Truth Society of Ireland). Available at Lux Occulta
Catholic Common Sense, by Albert Power (Dublin: Catholic Truth Society of Ireland, 1947). Available on Lux Occulta (copyright status uncertain).
The Catholic Controversy, by Saint Francis de Sales, Bishop and Doctor of the Church, translated by Rev. Henry Benedict Mackey, O.S.B. (London: Burns and Oates, 1886). May be read online at Good Catholic Books. The 3^rd revised and augmented edition, with an excellent translator’s preface (New York, Cincinnati, Chicago: Benziger Brothers; London: Burns and Oates, 1909) (Library of St. Francis De Sales, volume III) is available in various formats at Internet Archive.
Catholic Controversy: a Reply to Dr. Littledale’s Plain Reasons, by Henry Ignatius Dudley Ryder, 1837-1907 (London: Burns and Oates, 1881). Available on Open Library and Internet Archive (Digitizing sponsor: MSN; Book contributor: Kelly Library, University of Toronto). The 1889 edition (London: Burns & Oates; New York: Benziger Brothers, 1889) is available on Open Library and Internet Archive (Digitizing sponsor: National Institute for Newman Studies; Book contributor: Saint Mary’s College of California).
The Catholic Doctrine of the Eucharist: demonstrably proved from Scripture, from Tradition, and from the writings of some of the most eminent Catholic and Protestant authors who have treated on the subject; in sixteen letters, with notes and appendices, addressed to the Lord Bishop of Exeter; and dedicated by permission to His Imperial and Royal Majesty the Emperor of Austria, King of Hungary, Bohemia, etc., by M.D. Talbot (London: T. Jones, 1844). Available in various formats at Internet Archive and Open Library.
Catholic Evidence Training Outlines, compiled by Maisie Ward, with a foreword by His Eminence Cardinal Bourne, Archbishop of Westminster (London: Sheed & Ward, 1925, fifth impression 1929). With Imprimatur. May be read online at the EWTN Library. “No one should attempt to use this book without having made a careful study of the Introduction. The speakers are again reminded that these are not street-corner outlines but class outlines to prepare them for the street corner.”
Catholic Fiction part 1 Booklet, by Godwin Delali Adadzie. Available on Internet Archive, which described the tract thus: “Is the Roman Catholic Church the whore of Babylon? How to refute the claim that Bible Prophecy Reveals Next And Last Pope Will Be A Devil Impersonating John Paul II. Courtesy of the Sts. Peter and Paul Catechism Ministry – Ghana. website: http://www.amen.co.nr. Follow us on http://www.twitter.com/Apologetics”
Catholic Moral Teaching and its Antagonists Viewed in the Light of Principle and of Contemporaneous History, by Joseph Mausbach, translated from the 6^th edition by Anna M. Buchanan (New York: J. F. Wagner, 1914). With Imprimatur. Available on Open Library and Internet Archive (Digitizing sponsor: MSN; Book contributor: Kelly Library, University of Toronto).
The Catholic’s ready answer; a popular vindication of Christian beliefs and practices against the attacks of modern criticism, by Michael Peter Hill, from the Modernes A B C by Franz Xaver Brors (New York, Cincinnati: Benziger Brothers, 1915). With Imprimatur. Available at Open Library and Internet Archive.
Catholic tracts, by John Thayer, Thomas Kelly (Baltimore : E. Cummiskey). No Imprimatur, but with a recommendation from Francis Patrick Kenrick, Bishop of Arath and Coadjutor Bishop of Philadelphia. Apologetics, Converts. Available at Open Library and Internet Archive (Digitizing sponsor: MSN, Book contributor: Kelly Library, University of Toronto).
Certain difficulties felt by Anglicans in Catholic teaching considered: in a letter addressed to the Rev. E.B. Pusey, on occasion of his Eirenicon of 1864; and in a letter addressed to the Duke of Norfolk, on occasion of Mr. Gladstone’s Expostulation of 1874, by John Henry Newman, 1801-1890 (London: Pickering, 1876). Available on Internet Archive and Open Library (Book contributor: University of Toronto).
The chair of Peter or the Papacy: considered in its institution, development, and organization, and in the benefits which, for over eighteen centuries, it has conferred on mankind, by Murphy, John Nicholas (London: Burns & Oates, 1888). Available at Internet Archive.
The chief points of difference between the Catholic and Protestant creeds, by F. Laun. (New York: J. F. Wagner, 1915). With Imprimatur. May be read online or downloaded in multiple formats at Open Library.
Christ and the Church, by Pope Benedict XVI (General Audiences 2006 to 2011). May be read online at the EWTN Library. This provides a collection of the teaching addresses of Pope Benedict on Christ and the Church, Apostolic Tradition, and the lives and works of Catholic teachers from the founding of the Church to modern times, including the Apostles, the Eastern and Western Fathers, and the Scholastics.
Christian Apologetics; a Defense of the Catholic Faith, by Walter Devivier, 1833-1915, edited by Sebastian Gebhard Messmer, 1847-1930 (New York, Cincinnati, Chicago: Benziger Brothers, [c1903]). With Imprimatur. Available on Open Library and Internet Archive; and may be read on Catholic Tradition.
Christ’s kingdom on earth: or, the Church and her divine constitution, organization, and framework, explained for the people, by James Luke Meagher, 1848-1920 (New York : Christian Press Association, 1891). With Imprimatur. Available at Internet Archive.
A Catholic Critique of Jehovah’s Witnesses (Knights of Columbus, 1963). Available at Internet Archive in multiple formats
Catholic Christianity: or, The reasonableness of our religion, by Oliver Rodie Vassall-Phillips (London: R. & T. Washbourne, 1916) Available at Internet Archive.
Catholic Apologetics Guide 101, by Godwin Delali Adadzie. Available at Internet Archive. Apologetics.
The Catholic Church and Conversion, by G.K. Chesterton. Available on G. K. Chesterton’s Works on the Web. Conversion.
Catholicism Frequently Asked Questions, by Godwin Delali Adadzie (GADEL). Available at Internet Archive. A tract for Catholic evangelization.
Christian anthropology, by John Thein, with an introduction by Prof. Chas. G. Herbermann, Ph.D. (New York, Cincinnati: Benziger Brothers, 1892). Available at Internet Archive. [N.B., No Imprimatur, but it is published by a reputable Catholic publisher, and the content appears to be Catholic.]
Christian Apologetics: A Defense of the Catholic Faith, by Walter Devivier, edited by Sebastian Gebhard Messmer (New York, Cincinnati, Chicago: Benziger Brothers, [c1903]). With Imprimatur. Available at Open Library and Internet Archive; with selected excerpts available at Catholic Tradition.
Christian Apologetics: A Rational Exposition and Defense of the Catholic Religion, in 2 volumes, by the Rev. Walter Devivier, S.J., translated from the original French, edited and augmented by the Rev. Joseph C. Sasia, S.J. (New York: Joseph F. Wagner; London: B. Herder, 1924). With Imprimatur and the approbation of the Holy See. The 2 volumes are available at HathiTrust and at Internet Archive: Volume 1 and Volume 2.
A Christian Apology: Volume 1, God and Nature, by Paul Schanz, translated by Michael F. Glancey and Victor J. Schobel (Ratisbon, Rome, New York, Cincinnati: Frederick Pustet & Co., 1891). Available in various formats at Open Library and Internet Archive.
A Christian Apology: Volume 2, God and Revelation, by Paul Schanz, translated by Michael F. Glancey and Victor J. Schobel (Ratisbon, Rome, New York, Cincinnati: Frederick Pustet & Co., 1891). Available in various formats at Internet Archive, with a second copy here.
A Christian Apology: Volume 3, The Church, by Paul Schanz, translated by Michael F. Glancey and Victor J. Schobel (Ratisbon, Rome, New York, Cincinnati: Frederick Pustet & Co., 1891). Available in various formats at Open Library and Internet Archive.
The Church; or, What do Anglicans Mean by the Church? Second edition, by John B. Bagshawe (London: Catholic Truth Society, 1899). With Imprimatur. Available in various formats at Internet Archive.
The Civilizers of the Philippines. Subtitled on the first contents page as “Statements concerning the Roman Catholic Church in the Philippine Islands”. Available in various formats as Internet Archive and Open Library. [N.B., This is a history of the religious orders in Spanish Philippines, and an explanation of their role in its evangelization, education, and socio-economic life.]
A Commentary by Writers of the First Five Centuries on the Place of St. Peter in the New Testament: and that of St. Peter’s successors in the Church, by James Waterworth (London: Thomas Baker, 1871). Available at Internet Archive and Open Library.
Commonitory, For the Antiquity and Universality of the Catholic Faith Against the Profane Novelties of All Heresies, by St. Vincent of Lerins, died c. 450 AD. Available at New Advent.
Concerning the Bible: its use and abuse, John Stephen Vaughan (London : R. & T. Washbourne; New York: Benziger, 1904). With Imprimatur. Available at Open Library and Internet Archive (Digitizing sponsor: MSN, Book contributor: Kelly Library, University of Toronto).
“Contraception and the Infallibility of the Ordinary Magisterium,” by Germain Grisez and John C. Ford, S.J., Theological Studies, 39 (1978): 258–312. Available in PDF format at The Way of the Lord Jesus (copyright 2009).
Contraception and the Natural Law, by Germain Grisez (Milwaukee: Bruce, 1965). Available in PDF format at The Way of the Lord Jesus (copyright 2009).
The Conversion of Marie-Alphonse Ratisbonne: Original Narrative of Baron Theodore de Bussieres; Followed by a Letter from Mr. Ratisbonne to Rev. Mr. Dufriche-Desgenettes, Cure of Notre Dame des Victoires at Paris, edited by the Rev. W. Lockhart (New York: T.W. Strong). With an 1842 declaration. Available in various formats at Internet Archive and Open Library.
Dictionnaire Apologétique de la Foi Catholique: contenant les preuves de la vérité de la religion et les réponses aux objections tirées des sciences humaines, par Adhémar d’ Alès et Bernard Loth (Paris: G. Beauchesne, 1909). Disponible en Internet Archive et Open Library.
Dignitatis Personae: Instruction on Certain Bioethical Questions, by the Congregation for the Doctrine of the Faith, September 8, 2008. May be read online at the Holy See. A Summary of the Instruction is also available at the Holy See.
The Divinity of Christ, by Joseph Rickaby, S.J. (London, Edinburgh: Sands & Company; St. Louis, Mo.: B. Herder, 1906). With Imprimatur. Part of the Westminster Lectures (Second Series), edited by the Rev. Francis Aveling. Available in various formats at Open Library and Internet Archive.
Doctrinal Note on Some Aspects of Evangelization, by the Congregation for the Doctrine of the Faith (3 December 2007). May be read online at the Holy See. A summary is also available at Papal Encyclicals.net.
Ecce Fides-Pillar of Truth, by Fr. John J. Pasquini. Available at Internet Archive in multiple formats. Apologetics
An Essay on the Development of Christian Doctrine, John Henry Newman. On Fundamental Theology, Revelation, Tradition, Ecclesiology. May be read online on Newman Reader (electronic copyright, The National Institute for Newman Studies, 2007).
The Essentials of Spiritual Unity, by Ronald Knox. Available at Catholic Answers (last visited December 8, 2009).
Eucharistica; or, a Series of Pieces, original and translated, on the Most Holy and Adorable Sacrament of the Eucharist, by Most Rev. W. [William] Walsh, Archbishop of Halifax (New York: Edward Dunigan & Brother, 1854). Available in various formats at Internet Archive and Open Library.
Eugenics and Other Evils, by G.K. Chesterton (1922). Available at Manybooks.net and Project Gutenberg. Audiobook available at LibriVox.org.
The Evidence for the Papacy: as Derived from the Holy Scriptures and from Primitive Antiquity, with an Introductory Epistle, by Colin Lindsay (London: Longmans, Green, & Co., 1870). Available at Internet Archive and Open Library.
An Examination of the Evidence, Adduced by Mr. Keary, Against the Authenticity or Validity of Certain Passages from the Fathers: Contained in the “Faith of Catholics, on Certain Points of Controversy, Compiled by Rev. Jos. Berington and Rev. John Kirk”, by Rev. James Waterworth (London: J. Booker, 1834). Available in multiple formats at Internet Archive and Open Library.
Explanation of Catholic Morals: A Concise, Reasoned, and Popular Exposition of Catholic Morals, by John Stapleton. Available at Internet Archive and Project Gutenberg.
The Exercise of Faith Impossible Except in the Catholic Church, by William G. Penny (1846). Available at Internet Archive and Open Library. [NB, No Imprimatur, but the content appears to be a faithful restatement of Catholic teaching in response to Protestant objections, as well as an explanation of why the author was moved by grace to become Catholic.]
The Faith of Catholics: On Certain Points of Controversy, Confirmed by Scripture, and Attested by the Fathers of the Five First Centuries of the Church, compiled by Revs. Joseph Berington and John Kirk, revised and recast by the Rev. James Waterworth, with Preface, corrections, and additions by the Right Rev. Monsignor Thomas John Capel (Ratisbon, Rome, New York, Cincinnati: Frederick Pustet & Co., 1909-1910). In 3 volumes: The 3^rd enlarged edition of Volume 1 [on salvation and the rule of faith] is available in pdf, mobi, epub, and other formats at Internet Archive and Open Library, with a second copy at Internet Archive, and its 2nd edition (1885) is available at Internet Archive. The 5^th revised and enlarged edition of Volume II [on the papacy, baptism and the Eucharist] is available at Internet Archive, and its 2^nd edition (1884) is available at Internet Archive. The 5^th revised and enlarged edition of Volume III [on penance and prayers] is available at Open Library and Internet Archive, and its 2^nd edition (1884) is available at Internet Archive and Open Library.
The Faith of Our Fathers, being a plain exposition and vindication of the Church founded by Our Lord Jesus Christ, James Gibbons. Available in multiple formats at Project Gutenberg and: Internet Archive (Book contributor: Project Gutenberg), with a 2nd copy and a 3rd copy at Internet Archive.
“False Dichotomy: Christianity is Not Only Compatible with Science—It Created It”, by Rodney Stark, The American Enterprise (October/November 2003), pages 27-33. Available in PDF format at the Baylor University Institute for Studies of Religion and the University of Rochester Department of Physics and Astronomy (copyright owned by the American Enterprise Institute). [N.B., The author is not a Catholic, but his points merit consideration. The book from which this essay was adapted, For the Glory of God, is critiqued by James Hannam in Bede’s Library.]
Fifty reasons why the Roman Catholic religion ought to be preferred to all others: by which His Most Serene Highness Anthony Ulrick, Duke of Brunswick and Lunenburg, was induced to abjure Lutheranism : to which are added, three valuable papers, etc., etc., etc., by Anton Ulrich, Herzog von Braunschweig-Wolfenbüttel, 1633-1714. On Apologetics, Dogma. May be read online or downloaded in multiple formats at at Internet Archive. [NB: This is still on my Doctrinal Rechecking list, because Internet Archive’s author list mentions Fenelon. But I’ve seen no heterodoxy so far.]
FILIOQUE: A Response to Eastern Orthodox Concerns, by Mark J. Bonocore. May be read online on this page and available in PDF format at Catholic Bridge. [N.B., This tract/article, which reaches 50 pages in PDF, is a thorough explanation of the authentic Christian teaching on the “Filioque” and why it poses no barrier to the reunion of separated Eastern churches with the Catholic Church.]
Four Discourses Against the Arians, by St. Athanasius of Alexandria (296-373 AD). May be read online on this page of New Advent. [These discourses provide a detailed exposition of the authentic doctrine of the Incarnation of Christ our Lord, and a systematic refutation of objections to that doctrine.
Four Great Evils of the Day, by Henry Edward Manning (London: Burns, Oates, and Co., 1871). Available at Internet Archive and Open Library. [N.B. Lectures on “The Revolt of the Intellect against God”, “The Revolt of the Will against God”, “The Revolt of Society from God”, and “Spirit of Antichrist”]
From Tarsus to Rome: the Story of the First Christian hierarchy, by Herman Joseph Heuser (London, New York: Longmans, Green and co.1929). With Imprimatur. Available at Internet Archive [microform] and may be read at Onread.com. [NB, the Onread.com copy has many proofreading errors.]
The Fundamental Fallacy of Socialism: an Essay on the Question of Landownership, Comprising an Authentic Account of the Famous McGlynn Case, edited by Arthur Preuss (St. Louis, Mo.; Freiburg (Baden): B. Herder, 1908). With Imprimatur. Available in various formats at Internet Archive and Open Library
The Future Life: According to the Authority of Divine Revelation, the Dictates of Sound Reason, the General Consent of Mankind, by Joseph Casimir Sasia, 1843-1928 (New York, Cincinnati, Chicago: Benziger brothers, 1918). With Imprimatur. Available on Internet Archive and Open Library (Digitizing sponsor: MSN; Book contributor: Kelly Library, University of Toronto).
Galileo and His Condemnation, by Ernest R. Hull (London: Catholic Truth Society, 1913). Available at Internet Archive and Open Library.
“Galileo: Victim or Villain?” by Jason Winschel, The Angelus (2003), pp. 9-15, 34-39. 13 pages. Available in PDF format at the Society of St. Pius X. [Caution: While this particular text is useful, please avoid reading other texts on the website, which appears to espouse an invalid hermeneutic of discontinuity concerning the Second Vatican Council.]
God, Man and Religion: being part I of a short apologetic series, by Ernest R. Hull, S.J. (Bombay: Examiner Press; New York: P.J. Kenedy & Sons; etc., 1914). Available at Internet Archive and Open Library.
The Government of the Church in the First Century: an Essay on the Beginnings of the Christian Ministry, by William Moran (Dublin: M.H. Gill & Son, 1913). With Imprimatur. Available in various formats at Internet Archive and Open Library.
The Grounds of Faith: Four Lectures delivered in St. George’s Church, Southwark [or, Manning’s Lectures on the Grounds of Faith], by Henry Edward Manning (London: Burns and Lambert, 1852). Available at Open Library and Internet Archive. [Listed on the Table of Contents are: Revealed truth definite and certain; The church a historical witness; The church a divine witness; Rationalism the legitimate consequence of private judgment]
The grounds of the Catholick doctrine: contained in the profession of faith, publish’d by Pope Pius the Fourth, by way of question and answer Richard Challoner, 1691-1781; Pope Pius IV, Pope (Preston [England]: W. Stuart, 1775). Available on Internet Archive.
“A Heretical Pope Would Govern the Church Illicitly but Validly”, by Rev. Rev. Brian W. Harrison, O.S., Living Tradition, No. 87, edited by Msgr. John F. McCarthy and Rev. Brian W. Harrison, O.S. (May 2000). May be read online at the Internet Archive Wayback Machine (13 June 2002 snapshot of Living Tradition). A modified version of the text is also available: “White Smoke, Valid Pope: A Heretic Pope Would Govern Illicitly—but Validly”, by Rev. Brian Harrison, O.S., This Rock, Volume 12, Number 3 (March 2001), which may be read online at the Internet Archive Wayback Machine (12 September 2011 snapshot of Catholic Answers).
Heretics, by G.K. Chesterton. Available in multiple formats at Manybooks. and Project Gutenberg. Audiobook available at LibriVox.org.
Hilaire Belloc, by C. Creighton Mandell and Edward Shanks, with an Introduction by G. K. Chesterton (London: Methuen & Co. Ltd., 1916). [LINK DELETED MOTU PROPRIO DUE TO COPYRIGHT CONCERNS, as we learned that the co-author Edward Shanks passed away less than 70 years ago.]
The History of Heresies and Their Refutation, by St. Alphonsus Maria de Liguori. Available in PDF format at Documenta Catholica Omnia, and may be downloaded in PDF format through the Saints’ Books index.
The History of the Anointing of the Sick [Tract]. 7 pages. Available in PDF format at the Church of the Resurrection.
How Does the Catholic Church Define Itself?, by Jim Seghers. Available in PDF format on this page of Totus Tuus Ministries.
How the Catholic Church Built Western Civilization, by Thomas E. Woods, Jr. (Regnery History, 2005). Chapter 3 (“How the Monks Saved Civilization”) is available in PDF format at this page of The Church in History.
I’m Glad You Asked: Questions from the parishioners of St. Charles Borromeo Catholic Church, Picayune, Mississippi [N.B. This 127-page booklet compiles a wide range of questions and answers on the Catholic Faith, which appears useful for religious teaching, evangelization and apologetics.] Available at the the website of the Saint Charles Borromeo Catholic Church.
The Immaculate Conception of the Most Blessed Virgin Mary, Mother of God: A Dogma of the Catholic Church, by J.D. Bryant, M.D. (Boston: P. Donahoe, 1855). With episcopal approbation. [N.B., The index page states the author’s full name to be John Delavan Bryant.] May be read online, and available in various formats (mobi/kindle, epub, pdf), at Internet Archive and Open Library, with a 2^nd copy at Internet Archive and Open Library. Also available on this page at Hathi Trust Digital Library.
The Immaculate Conception of the Mother of God: An Exposition, by Bishop Ullathorne (London: Richardson and Son, 1855). Available in multiple formats at Internet Archive and Open Library, with a second copy at Internet Archive and Open Library. Another edition, revised by Canon Iles, D.D. and with an Introduction by the Bishop of Birmingham (Westminster: Art and Book Co., 1904) is available at Internet Archive and Open Library.
In Defence of Hilaire Belloc [Booklet], by Dennis Barton (The ChurchinHistory Information Centre). Available in PDF format on this page of The Church in History.
In Soft Garments: A Collection of Oxford Conferences, by Ronald A. Knox (New York: Sheed & Ward, 1953). With Imprimatur. Available at Internet Archive. Includes the essays “If God exists”, “The Living Witness”, “The Unholiness of the Church”, “Verbum baro factum est”, “The Church and Human Progress”, and “Unselfishness in Marriage”.
India and the Apostle Thomas: An Inquiry, with a Critical Analysis of the Acta Thomae, by Dr. A. E. Medlycott, Bishop of Triconia (London: David Nutt, 1905). Available at Internet Archive (which appears to have the better copy) and Internet Archive (2nd copy). [N.B., F.A. D’Cruz in his St. Thomas, the Apostle, in India (1905) notes that Dr. Medlycott was at one time Vicar Apostolic of Trichur in CochinState.]
Indulgences: Their Origin, Nature, and Development, by Alexius M. Lépicier (Alexis-Henri-Marie Cardinal Lépicier), (London : Kegan Paul, Trench, Trübner 1895). With approbation. Available at Open Library. And Internet Archive.
The Inquisition: a Critical and Historical Study of the Coercive Power of the Church, by E. Vacandard, translated from the 2d ed. by Bertrand L. Conway. (New York, London, Bombay, Calcutta: Longmans, Green, and Co., 1908). With Imprimatur. Available in various formats at Internet Archive and Open Library.
Instruction on Infant Baptism, by the Sacred Congregation for the Doctrine of the Faith, approved by Pope Blessed John Paul II, October 20, 1980. May be read online at the EWTN Library and the Catholic Information Network.
Is the Pope Infallible? by Peter J. Elliott. A.C.T.S. No. 1602 (1971). Available in PDF format on this page of Catholic Truth Society Pamphlets.
Jura et Bona: Declaration on Euthanasia, by Sacred Congregation for the Doctrine of the Faith, May 5, 1980. Available on Catholic Insight.
Knights of Columbus vs. criminal libel and malicious bigotry (Boston, Washington Press, 1914). At Internet Archive and Open Library (Digitizing sponsor: Internet Archive, Book contributor: University of Notre Dame Hesburgh Libraries).
Lay Witness Magazine: Resources for Living the Catholic Faith (July/August 1999). Available at Catholics United for the Faith. Includes the articles “Biblical Models for Women” by Stacy Mitch, “Contraception and the Trivialization of Sex” by Donald DeMarco, and “Power for Living” by Curtis Martin.
Lay Witness Magazine: Resources for Living the Catholic Faith (Sep/Oct 2003). Available at Catholics United for the Faith. Includes the article “The Luminous Mysteries for Families” by Fr. Charles M. Mangan.
Lay Witness Magazine: Resources for Living the Catholic Faith (January/February 2004). Available at Catholics United for the Faith. Includes the articles “Contraception and the Consistent Life Ethic” by Jason T. Adams, “Protecting the Culture of Life in the Philippines” by Steven Mosher, “The Church and “Domestic Partners”” by Bishop Thomas J. Tobin.
Lay Witness Magazine: Resources for Living the Catholic Faith (Sep/Oct 2008). Available at Catholics United for the Faith. This 40^th anniversary issue (which is combined with the July/August 2008 issue) includes the articles “Evangelization and the Laity” by H. Lyman Stebbins, “The Problem of Porn” by Bishop Michael Sheridan, “Who’s Hiding in the Closet Now?” by Leon Suprenant.
Lay Witness Magazine: Resources for Living the Catholic Faith (Nov/Dec 2011). Available at Catholics United for the Faith. Includes the articles “The New Evangelists: You and I” by Regis Flaherty, “The Catholic Girl’s Survival Guide for the Single Years: The Nuts and Bolts of Staying Sane and Happy While Waiting for Mr. Right: An Interview with Emily Stimpson” by Emily Stimpson, and “The Lost Art of Apprenticeship: Modernity’s Suspicion of Tradition and the Culture of Independent Thinkers” by Edward P. Sri.
Lay Witness Magazine: Resources for Living the Catholic Faith (Jul/Aug 2012). Available at Catholics United for the Faith. Contains the articles “Planned Barrenhood: Sterilization and its Discontents” by Patrick Coffin and “The Medium is the Message: Incarnating the Love of God” by Chris Sparks.
Lectures, by Henry Edward Manning (Baltimore: J.B. Piet). Includes: The Four Great Evils of the Day, The Sovereignty of God, and The Grounds Of Faith. Available at Internet Archive and Open Library.
Lectures: The Four Great Evils of the Day, The Sovereignty of God, The Grounds Of Faith, by Henry Edward Cardinal Manning (New York: P. J. Kenedy & Sons). Available at Internet Archive and Open Library.
[Letter to William Palmer, 1st] A Letter to the Rev. William Palmer, M.A., of Worcester College, Oxford, by Verax, a Catholic layman (London: T. Jones, 1841). Available in various formats at Internet Archive and Open Library.
[Letter to William Palmer, 2^nd] Second Letter to the Rev. William Palmer, M.A., of Worcester College, Oxford: demonstratively proving the Church of England to be an heretical and schismatical church, the mere creature of human invention, by Verax, a Catholic layman (London: T. Jones, 1841). Available in various formats at Internet Archive and Open Library.
[Letter to William Palmer, 3^rd] Third letter to the Rev. William Palmer, M.A., of Worcester College, Oxford: on auricular confession, and the absolute necessity thereof ; also the nullity of the Church of England’s ordinations, notes, etc., by Verax, a Catholic layman (London: T. Jones, 1841). Available in various formats at Internet Archive and Open Library.
[Letter to William Palmer, 4^th] Fourth letter to the Rev. William Palmer, M.A., of Worcester College, Oxford: on the way to find the true church of Christ on earth, on satisfaction, on indulgences, on the supremacy of the See of Rome, infallibility, Eucharist, etc., etc., by Verax, a Catholic layman (London: T. Jones, 1842). Internet Archive and Open Library.
[Letter to William Palmer, 5^th] Fifth letter to the Rev. William Palmer, M.A., of Worcester College, Oxford: God has confided the sacred deposit of the revelation of Christianity to an infallible authority, by Verax, a Catholic layman (London: T. Jones, 1843) Available in various formats at Internet Archive and Open Library.
Letters on the Spanish Inquisition, by Joseph de Maître, with notes by John Fletcher (London: Keating; Dolman; Jones; 1838). May be read online and downloaded in various formats at Open Library and Internet Archive. A translation by T.J. O’Flaherty, S.E.C. entitled Letters on the Spanish Inquisition; a rare work, and the best which has ever appeared on the subject (Boston: Patrick Donahoe, 1843) may be read at Google Books. [N.B. This work is sometimes entitled Letters to a Russian Gentleman on the Spanish Inquisition, as in the 1851 translation by the Rev. Aeneaus Mcd. Dawson.]
Living Tradition: Organ of the Roman Theological Forum, no. 25 (September 1989). Contains “Faith, Works and Justification”, by Brian W. Harrison, and “Wolfgang Smith: Teilhardism and the New Religion”, a review by John F. McCarthy. Available at the Roman Theological Forum.
Luther’s own statements concerning his teaching and its results,Taken exclusively from the earliest and best editions of Luther’s German and Latin works , by Martin Luther, 3rd ed. by Henry C. O’Connor. (New York: Benziger Brothers, 1885) With the approbation of various bishops. Available in various formats at Open Library and Internet archive with a second copy at Open Library and Internet Archive. NB, Recommended for Catholics and non-Catholics alike.
A manual of apologetics, by Franz Xavier Jos. Koch, translated by Anna Maud Buchanan, ed. Charles Paul Bruehl (New York, J. F. Wagner, 1915). With Imprimatur. Apologetics. Available at Internet Archive (Digitizing sponsor: Google) and Open Library.
Mary, the Mother of God, According to Scripture and the Early Church [Tract]. 20 pages. Available in PDF format on this page of Saint Rose of Lima church.
Mary, the Mother of God: Where It All Begins [Tract]. Available in PDF format on this page of Saint Charles Borromeo Catholic church.
Miscellanies, Volume 1, by Henry Edward Manning (London: Burns and Oates, 1877). Available at Internet Archive and Open Library.
Miscellanies, Volume 2, by Henry Edward Manning (London: Burns and Oates, 1877). Available at Internet Archive and Open Library.
Miscellanies, Volume 3, by Henry Edward Manning (London: Burns and Oates, 1877). Available at Internet Archive and Open Library.
Most Apologetics Collection, from Fr. William Most. ZIP file containing 57 essays by Fr. William Most on subjects relating to apologetics. May be downloaded from EWTN Library.
The Mother of Christ: or, The Blessed Virgin Mary in Catholic Tradition, Theology, and Devotion, by Oliver Rodie Vassall-Phillips (London: Burns, Oates & Washbourne, 1922). With Imprimatur. Available at Open Library and Internet Archive (Digitizing sponsor: Boston Library Consortium Member Libraries, Book contributor: Wellesley College Library).
The New Conspiracy Against the Jesuits Detected and Briefly Exposed, with a Short Account of their Institute; and Observations on the Danger of Systems of Education Independent of Religion, by R. C. Dallas (London, 1815). Available at ManyBooks.net and Project Gutenberg.
On Holy Images (Followed by Three Sermons on the Assumption), by St. John of Damascus (7th-8th century AD), translated from the original Greek by Mary W. Allies (London: Thomas baker, 1898). With Imprimatur. Available at Internet Archive and Open Library.
Orthodoxy, by G.K. Chesterton. Apologetics, Morals. Available at ManyBooks.net and Project Gutenberg as well as at The Literature Network and G. K. Chesterton’s Works on the Web. Audiobook available at LibriVox.org and LibriVox.org (2^nd copy).
Our Christian Heritage, by James Cardinal Gibbons (Baltimore: John Murphy and Company; London: R.Washbourne, 1889). Available at Internet Archive with a 2nd copy here.
The Papal Sovereignty; Viewed in its Relations to the Catholic Religion, and to the Law of Europe, by Bishop Felix Antoine Philibart Dupanloup (London : Catholic Publishing & Bookselling company 1860). Available at Open Library and Internet Archive
Paradoxes of Catholicism, by Robert Hugh Benson (New York: Longmans, Green, 1913). Available on Project Gutenberg and Internet Archive (Digitizing sponsor: MSN; Book contributor: Kelly Library, University of Toronto).
Pillar of Fire, Pillar of Truth, by Karl Keating, Catholic Answers. (Copyright 1993 Catholic Answers, Inc). Available on the EWTN Library, which states: “This text file may be uploaded to and downloaded from computer bulletin board systems provided the text is in no way altered and the above copyright notice and address of Catholic Answers are included.”).
Priest and parson : or, Let us be one, by Fogarty, James Henry. (New York: Christian Press Association, 1908). With Imprimatur. Available at Internet Archive (Contribited by Kelly Library, University of Toronto).
The primacy of the Apostolic See vindicated, by Francis Patrick Kenrick (Baltimore: J. Murphy, 1875). At Internet Archive and Open Library (Digitizing sponsor: National Institute for Newman Studies, Book contributor: Saint Mary’s College of California).
The Primitive Church and the See of Peter, by Luke Rivington, with an Introduction by the Cardinal Archbishop of Westminster (London: Longmans, Green, 1894). With Imprimatur. Available in various formats at Open Library and Internet Archive , with a second copy at Internet Archive and Open Library.
The principles of Christian apologetics: an exposition of the intellectual basis of the Christian religion, specially written for senior students , Thomas Joseph Walshe (London, New York [etc.] Longmans, Green and co, 1919). With Imprimatur. Available at Internet Archive and Open Library.
The Question of Miracles, by George Hayward Joyce (B. Herder; Manresa Press, 1914). With Imprimatur. Available at Internet Archive.
Quick Ten-Step Refutation of Sola Scriptura, by Dave Armstrong. Available in PDF, Kindle and EPUB formats at Internet Archive (Creative Commons license: Public Domain Mark 1.0) and may be read on Catholic Online. NB, The Internet Archive text appears to be compiled from essays by Dave Armstrong, beginning with this page, which were published at This Rock magazine.
Rational religion, 2nd ed., by John Conway (Milwaukee: Hoffmann Brothers 1890). Available at Open Library and Internet Archive.
Reasonableness of Catholic Ceremonies and Practices, by John J. Burke (New York: Benziger Brothers, 1909). With Imprimatur. Available on Project Gutenberg and in even more formats at Many Books.net.
Relaçaõ da Conversaõ do r. Senhor Joaõ Thayer, Pouco ha Ministro Protestante em Boston na America do Norte, Escrita por Elle Mesmo (Lisboa: Na Offic. Patr. de Francisco Luiz Ameno, 1788). Português e Inglês em páginas opostas. Disponível em Internet Archive e Open Library.
Religio Viatoris, 3^rd edition, by Henry Edward Manning (London: Burns and Oates; New York: Catholic Publication Society, 1888). In English, The Religion of the Traveller. According to Cardinal Manning, it sets down, “in fewest words, the reasons for what I believe.” Available at Internet Archive and Open Library.
A reply to the Rev. Dr. Turton’s “Roman Catholic doctrine of the Eucharist considered,” Philalethes Cantabrigiensis, the British critic, and the Church of England quarterly review, by Nicholas Patrick Wiseman (London: C. Dolman, 1839). Available at Internet Archive and Open Library (Digitizing sponsor: National Institute for Newman Studies, Book contributor: Saint Mary’s College of California).
Revelation and Creeds, by J. M’Intyre, D.D (London, Edinburgh: Sands; St. Louis, Mo.: B. Herder 1907). With Imprimi Potest. Part of the Westminster Lectures (Third Series), edited by the Rev. Francis Aveling. Available in various formats at Internet Archive and Open Library.
The Right to Life of the Unborn Child: a Controversy between Professor Hector Treub, M.D., Reverend R. van Oppenraay, D.D., S.J., Professor Th. M. Vlaming, M.D.: with an Appendix on a New Method of Operating, Ejecting the Fetus Alive, translated by C. Van der Donckt (New York: J. F. Wagner, 1903). Available on Open Library and Internet Archive (Digitizing sponsor: MSN; Book contributor: Robarts Library of Humanities & Social Sciences, University of Toronto). According to Open Library, it contains the following essays: “Medical abortion and the church”, by Hector Treub; “Reply to Prof. H. Treub,” by R. van Oppenraay; “Prof. H. Treub as penal legislator,” by Th. M. Vlaming; and “The right to life of the unborn child”, H. Treub; and “Narrowness or wholesome consistency,” by Th. M. Vlaming.
The Roman Primacy, A.D. 430-451, by Rev. Luke Rivington (London, New York, Bombay: Longmans, Green & Co.,1899).With Imprimatur. Available in various formats at Open Library and Internet Archive.
S. Peter, Bishop of Rome, or, The Roman Episcopate of the Prince of the Apostles: proved from the Fathers, history, and archaeology, and illustrated by arguments from other sources, by Rev. T. Livius, C.Ss.R. (London: Burns & Oates; New York: Catholic Publication Society, 1888). With Imprimatur. Available in various formats at Open Library and Internet Archive, which states the co-author to be Thomas Stiverd Livius.
Science and Religion: Lectures on the Reasonableness of Christianity and the Shallowness of Unbelief, by Most Rev. Roger Bede Vaughan (Baltimore: J.B. Piet, 1879). Available at Internet Archive and Open Library.
The see of St. Peter, the rock of the church, the source of jurisdiction, and the centre of unity, by Thomas William Allies (London: Catholic Truth Society, 1896) Apologetics. Available at Internet Archive.
Select treatises of St. Athanasius in controversy with the Arians, by Saint Athanasius, Patriarch of Alexandria, d. 373; John Henry Newman, 1801-1890 (London: Pickering, 1881). Available on Internet Archive and Open Library.
So You Think You’re Saved!? The “Justified-by-Faith-Only” Theory, by Rev. Dr. L. Rumble, M.S.C. Australian Catholic Truth Society, No. 1303 (1959). With Imprimatur. Available in PDF format on this page of Catholic Truth Society Pamphlets.
Some Lies and Errors of History, by Reuben Parsons (Notre Dame, Ind., Office of the “Ave Maria”, 1893). Available at Internet Archive and Open Library [N.B.–This is a collection of articles refuting the various “Black Legends” used to calumniate Catholics: the civilization of Latin (Medieval) Europe, the Eastern schisms, the case of Galileo, the Inquisition, holy wars, St. Bartolomew’s Day, the career of Pope Alexander VI and Cardinal Richelieu, and “the man in the iron mask”.]
Some Thoughts on Catholic Apologetics: A Plea for Interpretation, by Edward Ingram Watkin (Manresa Press, 1915). With Imprimatur. Available at Internet Archive.
The Spirit of the Liturgy, by Joseph Cardinal Ratzinger (now Pope Benedict XVI), translated by John Saward (San Francisco: Ignatius Press, 2000). The various excerpts available online are listed at the Pope Benedict XVI Fan Club. Part II, Chapter iii (“The Altar and the Direction of Liturgical Prayer”) may be read online at Ignatius Insight and Adoremus. Part III, chapter i (“The Question of Images”) may be read online at Adoremus (1^st part) and Adoremus (2^nd part). Part III, chapter ii (“Music and Liturgy”) is available at Ignatius Insight and Adoremus. “The Theology of Kneeling”, an excerpt from Part IV, chapter ii (“The Body and the Liturgy”), is available at Adoremus and Crossroads Initiative.
St. Peter at Rome: being an historical dissertation; with an appendix, containing reference to the discussion held in Rome, February 9th and 10th, 1872, in the Hall of the Pontificia Academia Tiberina, between three Catholic priests and three evangelical ministers, concerning the coming of St. Peter to Rome, by John Stewart M’Corry (London: Burns and Oates,1874). Available at Internet Archive and Open Library.
St. Thomas, the Apostle, in India: an investigation based on the latest researches in connection with the time-honoured tradition regarding the martyrdom of St. Thomas in southern India, by F.A. D’Cruz, K.S.G. (Madras: Hoe and Co., 1922). With an Introduction by A.M. Teixeira, Vicar-General and Administrator of the Diocese of Mylapore. Available in various formats at Open Library and Internet Archive.
The Stigmata and Modern Science, by Rev. Charles M. Carty. With 1958 Imprimatur. 11 pages. Available in PDF format on this page of Catholic Pamphlets.net.
Ten reasons proposed to his adversaries for disputation in the name of the faith and presented to the illustrious members of our universities, by Saint Edmund Campion. (St. Louis: B. Herder; London : Manresa Press, 1914). With Imprimatur. Translated from St. Edmund Campion’s Decem Rationes. Available at Internet Archive. [The Internet Archive index page also mentions Joseph Rickaby as an author.]
To Tell You the Whole Truth about the Catholic Church and the Bible, by Fr. John Noone, Douglas McNair, Zachary Grimes, Richard Marchand, Rita Tucei, Ronald Young, Dorothy Ducote (1996, updated 2000, web version created 2001, PDF version created 2002). [N.B. This 80-page booklet provides “a bird’s eye view of the history of the Church and the Bible, with short answers to a few common questions.”] Available at the website of the Saint Charles Borromeo Catholic Church.
The Theological Tractates and the Consolation of Philosophy, by Boethius, the Tractates translated by H.F. Stewart, D.D. and E.K. Rand, Ph.D. [who also wrote an excellent Introduction], and the Consolation translated in 1609 by “I.T.” and revised by H.F. Stewart (1918). Available at ManyBooks.net and Project Gutenberg. The Tractates included are: The Trinity is one God not three Gods; Whether Father, Son, and Holy Spirit may be substantially predicated of the Divinity; From the same to the same, how substances can be good in virtue of their existence without being absolute goods; On the Catholic Faith; A Treatise against Eutyches and Nestorius.
Theotokos: or, The Divine Maternity, by John Stewart M’Corry, D.D. (London: Burns and Oates, 1874). With Imprimatur. Available in various formats at Internet Archive and Open Library.
The Tradition of the Syriac Church of Antioch, Concerning the Primacy and the Prerogatives of St. Peter and of his Successors the Roman Pontiffs, by the Most Rev. Cyril Benham Benni, Syriac Archbishop of Mossul (Nineveh), translated under the direction of the author by Joseph Gagliardi (London: Burns, Oates, & Co., 1871). Available in various formats at Internet Archive and Open Library, with a second copy at Internet Archive and Open Library.
A Treatise on Indulgences, by Jean Baptiste Bouvier, translated and with a preface by Rev. Frederick Oakeley (London : James Burns, 1848) Available in various formats at Open Library and, in fewer formats, at Internet Archive (Digitizing sponsor: National Institute for Newman Studies, Book contributor: Saint Mary’s College of California) [N.B., No Imprimatur, but quite orthodox]
A Treatise on the Church, by Heinrich Klee, translated by Edward Cox (London: T. Jones, 1847). Available in various formats at Internet Archive and Open Library.
The True Religion: Being the Grounds of the Catholic Faith, by Rev. E.C. [Ernest Charles] Messenger (London: Catholic Truth Society, 1915). With Imprimatur. Available at Internet Archive.
The Truths of the Catholic Religion Proved from Scripture Alone: in a Series of Popular Discourses Chiefly Addressed to Non-Catholics Volume 1, Fourth Edition, by Thomas Butler (London: T. Jones, 1857). Available at Internet Archive and Open Library.
The Truths of the Catholic Religion Proved from Scripture Alone: in a Series of Popular Discourses Chiefly Addressed to Non-Catholics, Volume 2, Fourth Edition, by Thomas Butler (London: T. Jones, 1857). Available at Internet Archive.
The Vatican Decrees in their Bearing on Civil Allegiance, by Henry Edward Manning (London: Longmans, Green, 1875). Available at Open Library and Internet Archive.
What is the Catholic Church?, by Fr Stephen Wang. May be downloaded in PDF format through the Catholic Truth Society, which states that it provides “An introduction to the world’s oldest institution founded by Jesus Christ”.
What think you of Christ? Is the Christ of the Catholic Church the Christ of the Gospels?, by Francis H. E. Cahusac (London, Manchester, Birmingham, Glasgow: R. & T. Washbourne, 1914). With Imprimatur. May be read online, and available in various formats (pdf, epu, mobi/kindle, etc.) at Open Library and Internet Archive. Also available at the University of Toronto Libraries (pdf format), at Barnes & Noble (free Nook ebook), and at Forgotten Books (some pages accessible by members only). Hard copies of the work are being offered for sale at Preserving Christian Publications and at Amazon.com.
Where We Got the Bible: Our Debt to the Catholic Church, by the Right Rev. Henry G. Graham. With Imprimatur. LINKS DELETED DUE TO COPYRIGHT CONCERNS
Which is the True Church?: or, a Few Plain Reasons for Joining the Roman Catholic Communion, by C.F.B. Allnatt (Edinburgh: Ballantyne Press, 1881). Available at Internet Archive. and Open Library.

IV. Addressed to Errant Catholics

“Canon 915: The Discipline Regarding the Denial of Holy Communion to Those Obstinately Persevering in Manifest Grave Sin”, by the Most Rev. [now Cardinal] Raymond L. Burke, Archbishop of St. Louis, Periodica de Re Canonica, Vol. 96 (2007) pp. 3-58. May be read online on this page of the EWTN Library; and on this page of the Real Presence Eucharistic Education and Adoration Association, linked to from In the Light of the Law (blogspot) and In the Light of the Law (wordpress)
Declaration of Fidelity to the Church’s Unchangeable Teaching on Marriage and to Her Uninterrupted Discipline (29 August 2016), signed by 34,000+ signatories led by Jãnis Cardinal Pujats, Bishop Athanasius Schneider, Bishop Juan Rodolfo Laise, and Raymond Cardinal Burke. May be read online on this page at FilialAppeal.org.
“Seeking Clarity: A Plea to Untie the Knots in Amoris Laetitia“, by Cardinal Walter Brandmüller, Cardinal Raymond L. Burke, Cardinal Carlo Caffarra, and Cardinal Joachim Meisner (September 19, 2016). May be read online on this page at National Catholic Register.
The Superstition of Divorce, by G.K. Chesterton. Available at ManyBooks.net and at Internet Archive.
War on Faith: How Catholics for a Free Choice Seeks to Undermine the Catholic Church (White Paper Number One), by Dr. Thomas E. Woods, Jr., Ph.D. (New York: International Organizations Research Group, 2009, first edition 2001). 58 pages. Available in PDF format in English y en Espanol at the C-FAM, which states: “’Catholics For Free Choice’… has little grass-roots support, and is funded by reproductive rights industries with an explicit goal of undermining the Catholic Church both as an organization and the body of beliefs.”

V. Concerning Ethical Issues

Death and Dignity: New Forms of Euthanasia: A Catholic Perspective on the Human Right to a Dignified Death; With a Selection of Texts from the Church’s Engagement on Euthanasia (Chambésy: The Caritas in Veritate Foundation, 2016). Available in pdf format (on this page) at The Caritas in Veritate Foundation.
“The Arguments for Euthanasia and Physician-Assisted Suicide: Ethical Reflections”, by Eduardo Rodriquez, The Linacre Quarterly, Vol. 68, No. 3, Article 7 (August 2001): pp. 251-261. Available in pdf format at The Linacre Quarterly.
“The Moral Case Against Euthanasia”, by Sidney Callahan, PhD, Health Progress (January – February 1995): pp. 38-40, 53. May be read online and available in pdf format at the Catholic Health Association of the United States.
“The Murder of Unproductive Persons”: Sermon on 3 August 1941 at St. Lambert’s Church, Münster, by BishopClemens August von Galen. Available on this page of The Four Lübeck Martyrs; on this page of Priests for Life; and at Emerson Kent.com; and available with commentary at Almost Chosen People. Excerpts are available at German History in Documents and Images, with a 2^nd copy on this page; and at The History Place.
Three Sermons in Defiance of the Nazis, by the Bishop of Münster, Clemens August, Count von Galen (1941). The text of the sermons may be read online on this page at The ChurchinHistory Information Centre; through this page of The Four Lübeck Martyrs; and through Emerson Kent.com. Excerpts are available on this page at V for Victory!; on this page of Catholic Talk; and at Democratic Underground. The sermons are read out by Cal Beisang in a ten-part video series entitled “Catholic Sermons Defying the Nazis”, beginning with Part 1 on this page, posted by Catholic Digital Studio.
“The Way of Suicide, Assisted Suicide and Euthanasia, or Evangelium Vitae’s Way of Mercy and Compassion?”, by Dr. Brigid Vout, The Linacre Quarterly, vol. 70, no. 4, article 4 (2003), pp. 301-315. Available in PDF format at the The Linacre Quarterly.