10. Under the surnames of authors, when stated on the title-page or otherwise certainly known, followed by the forename and other necessary prefixes in round brackets.
11. When only the initials or pseudonym of an author occur in the book, it is to be regarded for the purpose of headings as anonymous; and a cross-reference is to be made from the initials or pseudonym to the first heading, the last initial being placed first, followed by the others in round brackets.
12. Under the pseudonyms of the writers, unless the book be already entered under two headings, in which case a cross-reference is to be made from the pseudonym to the first heading.
13. Under the names of editors of collections, and under the catch-titles of such collections; the parts are to be at the same time sufficiently catalogued under their own headings.
15. Under the chief word or words of the titles of periodicals.
16. Under the first striking word or words of the titles of anonymous { 105} works, with a cross-reference, where advisable, from any other noticeable word or catch-title. If the name of a writer occur in a work but not on the title-page, the work is also to be regarded for the purpose of headings as anonymous.
17. Commentaries with the text, editions of the text, and translations are to be entered (1) under the heading of the original work, and (2) under the name of the commentator, editor, or translator; commentaries without the text are to be entered under the same two headings, the second being placed first.
18. Editions of the entire Bible, with or without the Apocrypha, are to be entered under the word _Bible_: editions of parts of the Bible comprising more than one book under the words _Testament (Old)_, _Apocrypha_, _Testament (New)_, or lesser divisions such as _Pentateuch_, _Historical books_, _Hagiographa_, _Prophets_, _Gospels_, _Paul the apostle_, _Epistles (General)_.
21. Service and prayer books of the Church of England are to be entered under the names by which they are commonly known, such as _Prayer (Book of Common)_, _Baptism (Order of)_, _Communion (Holy)_, etc.: those of the Church of Rome in like manner under _Missal_, _Breviary_, _Hours_, etc., with a subheading of the use. Service-books of other religious communities are to be entered under the head of _Liturgies_, with a subheading of the religious community.