In 1667, was published, either at Lyons or Geneva, a reprint of the text as revised by Fanus, but with the addition of the Clementine lists and of the series of decrees. The latter are brought down to 1667. Fanus says of his edition that it is more comprehensive and more correct than that of 1664. It is not clear, however, from what sources his additional titles are taken. The division into three classes is abandoned; but he points out that there is no difficulty in identifying to which class an entry belongs. The name of an author, for instance, not followed by any book-title indicates Class I; the title of a book without name of author indicates Class III; while the author’s name connected with title stands for Class II, which constitutes the bulk of the Index. Fanus has some idea of bibliographical method. He makes cross-references for authors who in previous Indexes are presented sometimes under a forename and sometimes under a surname, the latter being frequently of course derived from the place of residence. The Index contains an “Address to the Reader” by Fr. Hyacinthus Libellus, Fanus’s predecessor. In this address, the Secretary takes the ground that all other Indexes are to be considered as “private” (_i. e._ unofficial). The first list in the series covers 160 pages. The second list presents exclusively books the title of which is followed by the name of the author. The third list is confined to books the title of which follows the name of the author. Then follows an appendix covering titles from 1661 to 1664, and this is followed by the text of the Tridentine Index, to which is prefixed an _Admonition_ by Libellus giving the origin and the history of that Index. Libellus affirms that the deputation of the Index, originally instituted by Pius IV, was matured into a formal congregation by Pius V. The concluding division is entitled: _Index Decretorum_. This is said to present _Omnia Decreta quae vel a Magistro Sac. Palatiti, cum ratione Officii siu, tum Jussu Sac. Congregationis, vel ab ipsis Sacris Congregationibus Indicis, et S. Officii emanuerunt_. This Index of 1664 is noteworthy as containing the formal condemnation of the works of Copernicus and Galileo, and of all other writings which affirmed the movement of the earth and the stability of the sun. The proceedings against Galileo and the Copernican doctrine had been instituted in 1616 under Paul V. The final condemnation of Galileo was given in 1633, under Urban VIII. =The Condemnation of Galileo, and of the Copernican Theory of the Solar System.=--The fourteenth and twentyeighth of the decrees summarised in the Index of 1664 present the record of the condemnation of Galileo. The records of the long series of the proceedings, upon which the final condemnation of Galileo was based, constitute a considerable mass of literature. It is necessary here to make reference only to the more essential conclusions arrived at by the Church authorities.