Origen, the learned and controversial father of the Church, compiled a six-fold edition of the Old Testament, comprising the Hebrew Testament, a transliteration, and four translations in Greek: those of Aquila, Symmachus, the Seventy, and Theodotion. Origen annotated the Septuagint, the next to last of these, with critical symbols; the Syriac translation includes the symbols, usually omitted in Greek quotations. While it does not survive as a single work, its fragments have been assembled several times. This is Field's monumental edition which incorporates all previous ones, and includes many additional fragments; he also quotes much of the Syriac text, recovers the critical marks, and uses it as a source for the Greek original.