Origenis Hexaplorum quae supersunt (2-volume set)

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.