See this legally free ebook:
- A Manual of Apologetics, by Franz Xavier Jos. Koch, translated by A.M. Buchanan, revised and edited by Rev. Charles Bruehl (New York, J. F. Wagner, 1915). With Imprimatur. Available at Internet Archive (Digitizing sponsor: Google) and Open Library., with a 2nd copy at Internet Archive, and a 3rd copy at Internet Archive; and also available at Forgotten Books (some pages of which may be accessed only by members) and HathiTrust Digital Library.
On the Feast of Saint Thomas the Apostle in the Extraordinary Form of the Roman Rite and of Saint Peter Canisius in the Ordinary Form of the Roman Rite. For other texts and ebooks, you may access the List of Free eBooks (Arranged by Title), the List of Free eBooks (Grouped by Subject), the List of Worth-It Catholic Books.