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Chapter 3.
3.54.
Paragraph series letters in parentheses appearing in heads set in caps, caps and small caps, small caps, or in caps and lowercase are to be set as in copy.
- section 1.580(f)(1)
Addresses, salutations, and signatures
3.55.
The first word and all principal words in addresses, salutations, and signatures are capitalized. See Chapter 16 "Datelines, Addresses, and Signatures."
Interjections
3.56.
The interjection "O" is always capitalized. Interjections within a sentence are not capitalized.
- Sail on, O Ship of State!
- For lo! the days are hastening on.
- But, oh, how fortunate!
Historic or documentary accuracy
3.57.
Where historic, documentary, technical, or scientific accuracy is required, capitalization and other features of style of the original text should be followed.
