examples given, better than the second form, because it suggests the close relationship between the two statements in a way that the second does not attempt, and better than the third, because briefer and therefore more forcible. Indeed it may be said that this simple method of indicating relationship between statements is one of the most useful devices of composition. The relationship, as above, is commonly one of cause or of consequence.

Note that if the second clause is preceded by an adverb, such as accordingly, besides, then, therefore, or thus, and not by a conjunction, the semicolon is still required.

Two exceptions to the rule may be admitted. If the clauses are very short, and are alike in form, a comma is usually permissible:

Note that in these examples the relation is not one of cause or consequence. Also in the colloquial form of expression,

a comma, not a semicolon, is required. But this form of expression is inappropriate in writing, except in the dialogue of a story or play, or perhaps in a familiar letter.

6. Do not break sentences in two.

In other words, do not use periods for commas.

In both these examples, the first period should be replaced by a comma, and the following word begun with a small letter.

It is permissible to make an emphatic word or expression serve the purpose of a sentence and to punctuate it accordingly:

The writer must, however, be certain that the emphasis is warranted, and that he will not be suspected of a mere blunder in syntax or in punctuation.

Rules 3, 4, 5, and 6 cover the most important principles in the punctuation of ordinary sentences; they should be so thoroughly mastered that their application becomes second nature.

7. A participial phrase at the beginning of a sentence must refer to the grammatical subject.

The word walking refers to the subject of the sentence, not to the woman. If the writer wishes to make it refer to the woman, he must recast the sentence:

Participial phrases preceded by a conjunction or by a preposition, nouns in apposition, adjectives, and adjective phrases come under the same rule if they begin the sentence.

Sentences violating this rule are often ludicrous.

III. ELEMENTARY PRINCIPLES OF COMPOSITION

8. Make the paragraph the unit of composition: one paragraph to each topic.

If the subject on which you are writing is of slight extent, or if you intend to treat it very briefly, there may be no need of subdividing it into topics. Thus a brief description, a brief summary of a literary work, a brief account of a single incident, a narrative merely outlining an action, the setting forth of a single idea, any one of these is best written in a single paragraph. After the paragraph has been written, examine it to see whether subdivision will not improve it.

Ordinarily, however, a subject requires subdivision into topics, each of which should be made the subject of a paragraph. The object of treating each topic in a paragraph by itself is, of course, to aid the reader. The beginning of each paragraph is a signal to him that a new step in the development of the subject has been reached.

The extent of subdivision will vary with the length of the composition. For example, a short notice of a book or poem might consist of a single paragraph. One slightly longer might consist of two paragraphs:

• A. Account of the work.
• B. Critical discussion.

A report on a poem, written for a class in literature, might consist of seven paragraphs:

• A. Facts of composition and publication.
• B. Kind of poem; metrical form.
• C. Subject.
• D. Treatment of subject.
• E. For what chiefly remarkable.
• F. Wherein characteristic of the writer.
• G. Relationship to other works.

The contents of paragraphs C and D would vary with the poem. Usually, paragraph C would indicate the actual or imagined circumstances of the poem (the situation), if these call for explanation, and would then state the subject and outline its development. If the poem is a narrative in the third person throughout, paragraph C need contain no more than a concise summary of the action. Paragraph D would indicate the leading ideas and show how they are made prominent, or would indicate what points in the narrative are chiefly emphasized.

A novel might be discussed under the heads:

• A. Setting.
• B. Plot.
• C. Characters.
• D. Purpose.

An historical event might be discussed under the heads:

• A. What led up to the event.
• B. Account of the event.
• C. What the event led up to.

In treating either of these last two subjects, the writer would probably find it necessary to subdivide one or more of the topics here given.

As a rule, single sentences should not be written or printed as paragraphs. An exception may be made of sentences of transition, indicating the relation between the parts of an exposition or argument. Frequent exceptions are also necessary in textbooks, guidebooks, and other works in which many topics are treated briefly.

In dialogue, each speech, even if only a single word, is a