His earliest publication was an account of the embassy in which he had taken part, ∏ ρεσβεία , sive Legatio Philippi III. et IV., Ηispaniarum Regum, ad Summos Pontifices Paulum V., Gregorium X V., et Urbanum VIII., pro definienda Controversia Immaculatae Conceptionis Beatae Mariae Virginis (Louvain, 1624, fol.). He contributed, many years later, a work to this question himself, Immaculatae Conceptionis Beatae Mariae Opusculum (Rome, 1655, 8vo), now of extreme rarity. He was also author of a treatise on the Hebrew language and other occasional writings, but his literary reputation rests chiefly upon the important works he published in connexion with the Franciscan order. The principal of these are Annales Ordinis Minonιm, 8 vols. folio (Lyons and Rome, 1628- 1654), a book of high repute, recast and enlarged by Fonseca, 19 vols. folio (Rome, 1731-1745), and since continued by Michelesi, 1794, and Melchiori de Ceretto, 1844; Scriptores Ordinis Minorum (Rome, 1650), to which is subjoined a reprint of a Syllabus FF. Minorum, a list of the English Franciscans who were put to death in Tudor days, which had become extremely rare, because most of the original impression was sent to England during the legateship of Cardinal Pole, and was seized and destroyed by order of Queen Elizabeth, because of its reflexions upon the character of Henry VIII.; an edition of the Concordantiae Bibliorum Hebraicae of Calasio, 4 vols. folio (Rome, 1621); Opera Omnia Joannis Buns Scoti, 12 vols. in 11, folio (Lyons, 1639); Sti Francisci Assisiatis Opuscula (Antwerp, 1623); and Sti Antonii Paduani Concordantiae Morales (Rome, 1624).