See this legally free ebook:

  • The Four Gospels Examined and Vindicated on Catholic Principles, by M. Heiss, (Milwaukee: Hoffmann Bros., 1863). Available in pdf, epub, mobi, and othr formats at Internet Archive, with a 2nd copy at Internet Archive and a 3rd copy at Internet Archive. It is also available at Google Books.
    • [N.B., The author appears to be the Most Rev. Michael Heiss, Rector of the Saint Francis de Sales Seminary from 1856 to 1868, and Archbishop of Milwaukee from 1868 until his death in 1890. This is based on the Internet Archive’s identification of the author as Michael Heiss, 1818-1890, the work’s description of the author as “Rector of the Salesianum, near Milwaukee”, and most conclusively, the 1913 Catholic Encyclopedia article “Milwaukee”.]

On the Memorial of the Four Evangelists in the Maronite church. For related ebooks and texts concerning the holy and inspired Scriptures, see the Project’s page Bibles and Commentaries. For other online texts and legally free ebooks, you may access the List of Free eBooks (Arranged by Title) and the List of Free eBooks (Grouped by Subject).