VIII. Italicize for and read in lists of errata to separate the incorrect from the correct.
Page 999 for Henry read Henri.
IX. The phrases prima facie and ex officio are sometimes used to qualify the nouns which follow, and sometimes used as adverbs. As qualifiers they are often printed in roman with the hyphen.
Prima-facie evidence.
An ex-officio member of all committees.
When used as adverbs they may be printed in italics without the hyphen.
The evidence is, prima facie, convincing.
The speaker is, ex officio, the chairman.
X. Names of ships, especially when they are taken from places, as in the United States Navy, are often italicized.
U.S.S. Philadelphia, U.S.S. Alabama.
XI. Names of paintings, statues, musical compositions, and characters in plays are sometimes italicized. This is not ordinarily advisable. It violates the rule of never using italics or other emphasizing devices needlessly and is liable to mar the appearance of the page. It is sometimes necessary, however, to avoid ambiguity. For example, Julius Caesar is a historical personage, "Julius Caesar" is one of Shakespeare's plays, Julius Caesar is a character in the play.
XII. Italicize the symbols a), b), c), etc., used to indicate subdivisions when beginning a paragraph and a, b, c, etc., affixed to the number of verse, page, etc., to denote a fractional part.