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7.07 Other uses

Periods may replace parentheses after numerals or letters used to introduce items in a vertical list (see 7.67 Numbering):

  • 1. Logic
    2. Grammar
         a. relative clause
         b. subordinate clause

A run-in sidehead should be followed by a period:

  • Punctuation. Punctuation is the art of . . . .
  • Fig. 3. Human resources by sector