A document, peculiar to this Index, is entitled _Observatio_. The first comment is upon the fourth rule and denies that by this rule any power is given to bishops, etc., to grant licenses to buy, read, or retain Bibles, or any parts or summaries of the Scriptures, in the vulgar language. This Observation is continued in the succeeding papal Indexes up to that of Benedict XIV in 1756. In the later edition of the Index of Benedict, which appeared in 1758, the instruction or interpretation given by the Observation is naturally modified. The third division of the Observation revokes the partial toleration of the Talmudic and Cabalistic books, and the fourth forbids the circulation in any other than the original language of the Hebrew ritual called _Magazor_. The sixth enjoins in the matter of the prohibition of books, that the names of the works condemned should be delivered to the bishops and inquisitors and that license to read them should be obtained for the same. The correction of books is to be committed to learned and pious men and the circulation of the work where expurgated and amended to the satisfaction of the examiners is permitted. The correctors are to search for all utterances anti-Catholic or adverse to the Church or in praise of heretics, as well as for such as are immoral or as may be injurious to individuals. Catholic books issued after the year 1515 are, if objectionable, to be corrected, but the works of the ancients are to be corrected only in case errors have been introduced by the fraud of heretics, etc. The instruction in regard to the impression of books is as follows: The work to be printed must first be shown to the bishop or inquisitor and approved by either of them; when printed, the text must be compared with the manuscript and verified as correct before permission can be given for sale. Printers must be orthodox men and must bind themselves by oath to deal faithfully and catholicly, and the more learned and eminent of them must profess the creed of Pius IV. A work that has been expurgated by the examiners must express that fact on its title-page.