2. Some proper names are not abbreviations, and consequently a period should not be used; as, Ben Jonson, Fred Knapp. When Ben. stands for Benjamin, and Fred. for Frederick, a period should be used.
3. When numerals are represented by the letters of the alphabet, periods are placed after them; as, Gen. vii. 1, 7, 8.
4. In numbering pages, no mark should be placed after 1, 2, 3, 4, &c.
5. When a letter, used as an abbreviation, is doubled to indicate the plural, the period should be placed after the last letter; as, pp. for pages, LL. D. for Doctor of Laws.
6. In abbreviating words, sometimes the first letters are used, sometimes the first and last, and sometimes the first and some letter near the middle of the word; as, Ala. for Alabama, Chas. for Charles, Wm. for William, MS. for manuscript.
7. A list of abbreviations will be found at the close of any good dictionary.
INTERROGATION POINT.
Rule I. Direct Question.—A direct question must be followed by an interrogation point.
EXAMPLES.