rd person.
_Not only--but also_.
_Notorious_, confused with _noted_, Glossary.
Nouns, common; proper; case of; gender of; number of.
_Nowhere near_, for _not nearly_, Glossary.
Number, defined; agreement of verb and subject in number; singular;
plural; of relative pronouns; of pronouns; of pronouns with
compounded antecedent; rules for forming plurals of nouns.
_Number_, sign #, used for.

_O_ and _oh_, capitalization of (Sec.100).
Object complement, explained.
Objective case, defined; when used.
Obligative mode (footnote).
_Observance_, confused with _observation_.
Obsolete words.
_Of_, Glossary.
Omission, of adverb _much_; of important words; of prepositions;
punctuation in case of (Sec.117); (Sec.138); of verbs.
_One another_, use of.
_Only_, placing of; with a negative, Glossary.
Order of heading in letters.
_Other_, use of in comparison.
_Ought_.
Outline, for composition; illustration of.
Outside address, of letters.
_Outside of_, Glossary.
Over-statement of facts, rule against.
_Over with_, Glossary.

_Pants_, Glossary.
Paragraphing of letters.
Paragraphs; coherence in; emphasis in; indentation of; in letters;
length of; unity in.
Parenthesis marks, use of; too frequent use of.
Parts of speech, classified.
Passive voice and active voice explained; forms of.
Past participle, explanation and use of.
Past tense, explanation and use of.
Participles, explanation of; confusion with gerunds; dangling; at
beginning of sentence; preceded by _thus_.
Period, use of.
Periodic sentence.
Personal pronouns, defined; classified; compound personal pronouns;
use of common and of grave forms of; unnecessary use of.
_Piece_, Glossary.
_Photo_, Glossary.
Phrases, defined; prepositional; verb; punctuation of adverbial
phrases (Sec.116), (Sec.121).
_Place_, Glossary.
Placing of adjectives and adverbs.
_Plenty_, Glossary.
Plural number, explained; rules for forming plurals of nouns.
Point of view, in paragraph; in sentence; in whole composition.
_Poorly_, for _ill_, Glossary.
Positive degree.
Position, in letters, of complimentary close; of heading; of inside
address; of salutation; of outside address.
Possessive case, defined; rules for forming possessives of nouns;
when used.
Potential mode, explanation and forms of.
Predicate of the sentence; defined; compound, predicate, explained.
Prepositional phrase.
Prepositions, defined; omission of; proper use of; unnecessary use
of; used as conjun