It is noteworthy that the members of the council speak of the author of the Index as being unknown to them. It is evident that they do not accept as real the authors whose names are given. It is a suggestion of Mendham that the chief purpose of the production of this particular Index was the proscription by the Jesuits of the works of van Espen. It is evident in any case from the character of the books selected for condemnation, as well as from the wording of the documents connected with the lists, that this Index was a part of the long fight of the Jesuits against the followers of Jansenius. Among the authors condemned in this Index was, curiously enough, the well-known bishop and eloquent preacher, Bossuet, called by some of his contemporaries the Eagle of Meaux, and also the _Mallens Haereticorum_. The full title of the work condemned is as follows: _Defensio declarationis celeberrimae quam de Potestate ecclesiastica sanxit Clerus Gallicanus, 19 Martii, 1682, ab Illus. ac Rev. Jacobo Benigno Bossuet Meldensi Episcopo, ex speciali jussu Ludovici Magni Scripta_, 2 vol. 4to, Luxemburgi, 1730. _3._ _Bohemian Indexes, 1726–1767._--In 1726, was printed in Prague a reprint of the Roman Index of 1704 together with the appendix of 1716. In 1729, was printed at Königgrätz, as a supplement to the Roman Index, an _Index prohibitorius_ and _expurgatorius_ in which special consideration is given to works in Latin, in German, and in Czech which had found circulation in Bohemia. The main title reads: _Clavis haeresim claudens et aperiens_. This is followed by a Bohemian title the substance of which is: “A key which has for its purpose the making clear to the understanding the pernicious character of heretical writings, and which, in so doing, shall provide for their extermination; or a catalogue of pernicious works which are likely to cause mischief and which on this ground have been prohibited, together with instructions for the identification of such dangerous writings for extermination of same.”