“A number of the books which were prohibited in the Tridentine Index, such as the works of Erasmus and Molinäus, have been corrected in the Antwerp _Index expurgatorius_. It may therefore be assumed that the later editions of these works have been printed with the approved text.” The Index of Hannot, while unofficial, secured later the approval of the Bishop of Namur. The Index of Precipiano undertook to prohibit only books which had not already been prohibited in Rome. The Congregation of the Index paid no attention to the lists prepared by Precipiano. Of the long list of Calvinistic books condemned by Precipiano, only one, a treatise by Basnage, was prohibited in Rome (not until 1728), and of the sixty Jansenist writings only two, the _Difficultés_ of Arnauld and an essay of Quesnel, found place in the Roman lists. Brussels, 1735.--_Catalogus Preliminaris donec amplior sequatur, Quorundam Librorum tum prohibitorum tum noxiorum aut Periculosorum et Proscriptorum e Belgio Austriaco_, etc. The first division is devoted to an _Instructio Summaria_ comprising the general rules; then follows the body of the Index under the title: _Instructio specifica sine Catalogus_, etc. This Index is distinctive in giving in a separate schedule, connected with the titles by numbers, the grounds on which the books are condemned. The schedule is entitled: _Qualificationes et Censurae Librorum_. The lists are largely devoted to the works of Jansen, Quesnel, and van Espen. The Index is said by Mendham to have been the work of the Jesuit Father Wouters Hoynck van Papendrecht, Archpriest of Malines. The regulations provide for minute and vexatious visits of printeries and bookshops, and for interference with sales of books. The Index appears never to have got beyond the status of a scheme. It secured the cordial approval of the Governess, the Duchess Marie Elizabeth, but the Council of Brabant objected to the publication, and appears to have been strong enough to maintain its objection. The regulations of the Index failed, therefore, to secure the sanction of law, and were not put into force. The result indicates that the authority of Philip IV in Brabant was not as final as had been that of Philip II. The scheme comes into print in a supplemental volume of the works of van Espen.[205] The introduction contains the following noteworthy observation: “_Il seroit inutile de répéter que dans tout le dit Catalogue on ne trouve pas condamné un seul livre de ceux qui ont voulu attribuer aux Papes ce pouvoir illimité, à l’égard des Princes seculiers, ce qui prouve encore le nécessité qu’il y a de maintenir les auteurs qui à cet égard ont soutenu les droits des Princes._” This complaint occurs not infrequently on the part of the critics of the Indexes. It was made among others by Fra Paolo in his _Discorso_ on the Inquisition already referred to.