Chapter IV: On Typographers and Editors of Books

43. Let no book subject to ecclesiastical censure be printed unless at the beginning it displays the name and surname both of the author and of the editor, and in addition the place and year of printing and of edition. But if in some case, for just causes, the name of the author seems to have to be suppressed, let the power of permitting this be in the hands of the Ordinary.

44. Let typographers and editors of books know that new editions of the same approved work require a new approval; and furthermore that the approval granted to the original text does not avail for its version into another language.

45. Books condemned by the Apostolic See are to be judged prohibited everywhere among the nations, and into whatever language they are turned.

46. All booksellers whatsoever, especially those who glory in the Catholic name, should neither sell, nor lend, nor retain books treating expressly of obscene matters; they should not have the rest of the prohibited books for sale unless they have obtained permission from the Sacred Congregation of the Index through the Ordinary, nor should they sell them to anyone unless they can prudently judge that they are legitimately sought by the buyer.