f letters.

The period is omitted

After Roman numerals, even though they have the value of ordinals.

After MS and similar symbols.

In technical matter, after the recognized abbreviations for
linguistic epochs. IE (Indo-European), MHG (Middle High German)

and after titles of well-known publications indicated by initials
such as AAAPS (Annals of the American Academy of Political Science).

When a parenthesis forms the end of a declarative sentence the period is
placed outside the parenthesis, as in the preceding example. A period is
placed inside a parenthesis only in two cases.

1. After an abbreviation.

This was 50 years ago (i.e. 1860 A.D.)

2. At the end of an independent sentence lying entirely within the
parenthesis.

Lincoln was at the height of his powers in 1860 (He was elected to
the presidency at this time.)

When a sentence ends with a quotation, the period always goes inside the
quotation marks.

I have just read DeVinne's "Practice of Typography."

The same rule applies to the use of the other low marks, comma,
semicolon, and colon, in connection with quotation marks. Unlike most
rules of grammar and punctuation, this rule does not rest on a logical
basis. It rests on purely typographic considerations, as the arrangement
of points indicated by the rule gives a better looking line than can be
secured by any other arrangement.

_Other Uses of the Period_

1. The period is used as a decimal point.

2. The period is used in groups, separated by spaces, to indicate an
ellipsis.

He read as follows: "The gentleman said . . . .
he was there and saw . . . . the act in question."

THE DASH

The dash is a very useful mark which has been greatly overworked by
careless writers. It is very easy to make in manuscript and serves as a
convenient cover for the writer's ignorance of what point should
properly be used.

The conspicuousness of the dash makes it a very useful mark for guiding
the eye of the reader to the unity of the sentence. It is particularly
useful in legal pleadings where there is much repetition of statement
and great elaboration of detail. In such cases commas, semicolons, and
even parentheses are so multiplied that the relation of the clauses is
lost sight of. The confusion thus arising may often be cleared up by
intelligent use of the dash.

The dash is sometimes used to connect a side heading with the text that