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  • 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.