Life of Don Bosco, Founder of the Salesian Society, 2nd edition, by J.M. Villefranche, translated by Lady Martin (London: Burns & Oates, Limited; New York: Catholic Publication Society). May be read online and available in pdf format at Google Books.
Patrology: The Lives and Works of the Fathers of the Church, by Professor Otto Bardenhewer, D.D., Ph.D., translated from the 2nd edition by Professor Thomas Joseph Shahan, D.D. (Freiburg im Breisgau; St. Louis, Mo.; Karlsruhe; Munich; Strassburg; Vienna: B. Herder, 1908). With Imprimatur, and with the approbation and recommendation of various archbishops and bishops. May be read online, and available in pdf, mobi, epub and other formats, at Open Library and Internet Archive, with a 2nd copy at Internet Archive, a 3rd copy at Internet Archive, and a 4th copy at Internet Archive.
St. Polycarp, Bishop of Smyrna, by Blomfield Jackson (London, Brighton: Society for Promoting Christian Knowledge; New York: E. & J. B. Young, 1898). May be read online, and is available in pdf, mobi, epub, and other formats at Internet Archive with a 2nd copy at Internet Archive. [This work does not appear to have been written by a Catholic Christian, but it provides the life and works of a great early Catholic of the one true Church.]
Thoughts, Words and Things: An Introduction to Late Mediaeval Logic and Semantic Theory, by Prof. Paul Vincent Spade, Version 1.1: August 9, 2002 (Copyright @ 2002 by Paul Vincent Spade). 410 pages. Available in pdf format at Medieval Logic and Philosophy. (The text states: “Permission is hereby granted to copy this document in whole or in part for any purpose whatever, provided only that acknowledgment of copyright is given.”)
What Is Logic?, by Prof. Sara L. Uckelman, Ph.D., February 23, 2022. 355 pages. Available in pdf format at the webpage of Dr. Sara L. Uckelman.
“The courage to engage the whole breadth of reason, and not the denial of its grandeur – this is the programme with which a theology grounded in Biblical faith enters into the debates of our time… It is to this great logos, to this breadth of reason, that we invite our partners in the dialogue of cultures. To rediscover it constantly is the great task of the university.” (Pope Benedict XVI, Regensburg Lecture)
“Capital Grace of the Word Incarnate According to Saint Thomas Aquinas”, by Sister Lucia Marie Siemering, O.P., Studia Gilsoniana, Vol. 5, No. 2 (April–June 2016): pp. 327–343.
“Care of Souls and the Logic of Trent as a Pastoral Council”, by Dr. V.U. [Valentine U.] Iheanacho, Acta Theologica, vol. 39, no. 1 (June 2019): pp. 94-109. Available in pdf format on this page of Acta Theologica.
Evidences of Religion, by [Prof. Fr.] Louis Jouin, S.J. [1818-1899] (New York: P. O’Shea, 1880). With Imprimatur. Available online on this page of the HathiTrust Digital Library. An earlier impression (New York: P. O’Shea, 1877) may be read online, and available in pdf, mobi, epub and other formats, at Internet Archive, with a 2nd copy at Internet Archive; and it is available in pdf format on this page of Fish Eaters.
“[W]hen the men were come to him, they said: John, the Baptist, hath sent us to thee, saying: Art thou he who is to come: or expect we another? (And in that same hour, he cured many of their diseases, and sores, and evil spirits, and to many that were blind, he gave sight.) And, answering, he said to them: Go and relate to John what you have heard and seen: That the blind see, the lame walk, the lepers are made clean, the deaf hear, the dead rise again, to the poor the gospel is preached:
“And… he began to speak to the multitudes concerning John:… But what went you out to see? a prophet? Yea, I say to you, and more than a prophet. This is he of whom it is written: Behold I send my angel before thy face, who shall prepare thy way before thee. For I say to you: Amongst those that are born of women, there is not a greater prophet than John, the Baptist: but he who is lesser in the kingdom of God, is greater than he…
“And the Lord said: Whereunto then shall I liken the men of this generation?… They are like to children sitting in the market-place… saying: We have piped to you, and you have not danced: we have mourned, and you have not wept. For John, the Baptist, came, neither eating bread, nor drinking wine, and you say: He hath a devil. The Son of man is come eating and drinking, and you say: Behold a man that is a glutton and a drinker of wine, a friend of publicans and sinners. And wisdom is justified by all her children.”
(Gospel according to St. Luke vii, 20-35. Formatting supplied.)
The Gospel of St. John; With Notes Critical and Explanatory, by the Rev. Joseph MacRory, D.D., Professor of Sacred Scripture and Hebrew, Maynooth College [later Cardinal Archbishop of Armagh and Primate of All Ireland] (Dublin: Browne & Nolan, 1897). With Imprimatur. Available in mobi, epub, and other formats at Project Gutenberg and Internet Archive.
“Confession of Faith, Eucharist and Martyrdom; With Special Reference to Early Church Fathers of the East”, by Bishop Dr. Abraham Mar Julios, Homiletic and Pastoral Review, September 27, 2017. May be read online on this page of Homiletic and Pastoral Review.
“Truth and Martyrdom: The Structure of Discipleship in Veritatis Splendor”, by Prof. John R. Berkman Ph.D., Sacred Heart University Review, Vol. 14, Iss. 1, Article 8 (1994). Available in pdf format on this page of the Sacred Heart University Review.
The Catholic Student’s “Aids” to the Bible, by Professor Fr. Hugh Pope, O.P. [1869-1946]. In 2 volumes:
Volume I.The Old Testament, 2nd edition, with a preface by the Cardinal Archbishop of Westminster [Francis Cardinal Bourne], and including the text of Pope Leo XIII’s Encyclical [“Providentissimus Deus”] on the Study of Holy Scripture (London, Manchester. Birmingham, Glasgow: R. & T. Washbourne, 1918). May be read online, and is available in pdf, mobi, epub, and other formats, at Internet Archive, with a second copy at Internet Archive.
Volume II. The New Testament (The Gospels), with a preface by Cardinal Gasquet (London, Manchester. Birmingham, Glasgow: R. & T. Washbourne, 1918). May be read online, and is available in pdf, mobi, epub, and other formats, at Internet Archive , with a second copy at Internet Archive.
“Therefore, brethren, stand fast, and hold the traditions which ye have been taught, whether by word, or our epistle.” (II Thessalonians ii, 15, KJV; cf ii. 14, D-R)