_1681._ _Rome._ _Clement XI._ In 1681, under the instructions of Clement XI, Jacobus Riccius again reprints the same lists and decrees with supplements. An edition of this Index of 1681 was printed in Munich in 1683. Riccius states in his preface that, in addition to the including of the titles of the later prohibitions, he has found occasion for a number of corrections, both in the titles and in the names of the authors. The editors of the Roman Indexes are now beginning to show some regard for bibliographical completeness and typographical accuracy. A second impression of the Riccius Index was printed in Rome in 1682, and a third edition appeared in 1739, printed without change, and the later prohibitions are recorded in a series of appendices. Between the years 1704 and 1744, were also printed various editions of this Index, in which the titles of the works prohibited from 1704 to 1739 find place in the main alphabet. Reusch points out, however, that from 1682 to 1754 no official edition of an Index was printed in Rome. A number of Indexes bearing the imprint of the Apostolic printing-office were as a matter of fact manufactured elsewhere, chiefly in Venice.[206] Riccini, or Riccius, who served from 1749 to 1759 as secretary of the Index Congregation, states that for more than seventy years no official editions of the Index were printed in Rome; and that the editions issued from the presses of Venice, presenting the false imprints of the Roman office, contained many blunders and were not to be accepted as authoritative. The official and approved editions must in any case include an introductory word from the secretary of the Congregation. The Index of Clement XI contains, as first printed, one alphabeted list. In later editions, this list is followed by appendices which, by the year 1734, had aggregated five. The first of these appendices has the epithet _Unica_. It is suggested that this term indicates that the appendix has been substituted for a previous faulty appendix. It is Hannot’s understanding that the fault in the cancelled appendix consisted in a condemnation which had been almost immediately revoked.