12.6 Summary

The rules governing the use of the letter sign may be summarized as follows:

Use the Letter Sign

  1. With all single letters that mean letters, not words. [Class B]
  2. With single letters followed by 's. [p's and q's]
  3. With letters that represent shapes. [a Ved formation]
  4. With single letters joined to words by a hyphen or dash. [x-ray]
  5. With single letters joined to other single letters by a hyphen or dash. [a-j A-J]
  6. With single enclosed letters in regular text (drop enclosure symbols). [(a) "b"]
  7. With unpunctuated letters in outlines and lists.
  8. With names, words, or letter groupings that could be mistaken for short-form words.
  9. With any single letter connected to a number by a hyphen. [c-4 4-C]
  10. With a letter or letter grouping immediately following a number, or following a number and a hyphen. [6MG 6-mg]
  11. With letter groupings joined to a number by a hyphen that could be mistaken for a short-form word. [Fr-10 6-ab]
  12. With lowercase roman numerals and foreign ordinal numbers (to be studied in Lesson 14).

Do Not Use the Letter Sign

  1. With the words a, I, and O.
  2. With letters that are followed or preceded by an apostrophe, hyphen, or dash indicating omitted letters. [Fish 'n' Chips d--n]
  3. With letters designating topics in outlines or listings if they are followed by or enclosed in punctuation.
  4. With letter groupings that could not be mistaken for a short-form word. [XYZ]
  5. With words, names, or letter groupings that correspond to short-form words, but, because of context, could not be mistaken for one.
  6. With a contraction that immediately follows a number, as in ordinal numbers. [1st 4th]
  7. With any letter that is immediately followed by a number. [M6]
  8. With letter groupings followed immediately by a number, or by a hyphen and a number, that will not be confused with a short-form word. [TY60 ty-60]
  9. With words following a number and a hyphen, unless all of the letters of the word could be misread as a number. [6-pack]
  10. In stammered words (see 12.7.a). [b-b-boy]
  11. With initials and abbreviations followed by periods or a slash (to be studied later).

Drill 23

Try the Drill in WESBraille.