A circular letter of Martianay's is still extant, in which he begs the co-operation of Benedictine abbeys in the work of producing a critical and complete edition of Jerome's writings.
In addition, he published many critical works on Biblical questions; he wrote a treatise on inspiration against Richard Simon; also a vindication of the Hebrew text and of the chronology given in the Latin Vulgate.
Martianay also treated of: the history of the Biblical canon; the French versions of the New Testament in the "Tentamen Versionis": and wrote a treatise on "The Method of explaining Holy Scripture".
This collation, reproduced by Bianchini in his "Evangelium Quadruplex", was considered faulty; a correction of it is in the first volume of Wordsworth and White, "Old Latin Biblical Texts".
Ziegelbauer mentions also another work of Martianay, never printed, namely, an edition of the Vulgate with variant readings suggested by the Hebrew and Greek texts, and furnished with a series of references to the parallel passages.