Nominative or objective, 43-50. No one, neither, choice between,55-56. Nor, or, choice between, 144.  Notional verbs, defined, 72.  Nouns, 16-42; form of the possessive case, 16-17; use and misuse of the
  possessive case, 17-18; singular and plural, 18-21; plural forms of
  foreign origin, 20; gender, 21; abbreviations, 22; misused, 22-42;
  gerunds and verbal nouns, 50-51.
Novel, new, distinguished, 123. Novice, novitiate, distinguished, 31. Nowhere near, 110.  Number, singular and plural, of nouns, 18-21; of pronouns, 58-60;
  of verbs, 89-92; of adjectives, 110.
Number, distinguished from quantity and amount, 29;
  from lot, 81.
Number, quantity, amount, distinguished, 29. Nun, masculine corresponding to, 21.

Oasis, plural of, 21.  Objective case, 43-50. Observance, observation, distinguished, 26.  Obsolete, defined, 4, Octavo, plural of, 18. Odd, funny, distinguished, 122. Of after verbal nouns, 51. Of which, whose, choice between, 54.  Omitted articles, 13; pronouns, 60; adverbs, 117; prepositions, 140;
  conjunctions, 146.
On, in, before names of streets, distinguished, 135. On, for, after wait, distinguished, 135. One, possessive and reflexive of, 56-57. Only, distinguished from alone, 116; position of, 132. Onto, 135. Oppose, antagonize, distinguished, 94. Or, nor, use of, 144. Oral, verbal, distinguished, 123. Ordinary, average, distinguished, 122. Organism, organization, distinguished, 31. Other, with comparatives and superlatives, 129. Ought, tense of the infinitive with, 78-79. Our, us, before verbal nouns, 51. Ourselves, we, us, proper choice among, 43-46.

Parenthesis, plural of, 21. Part, portion, distinguished, 31.  Participle, defined, 50. Partly, partially, distinguished, 119.  Parts of verbs, principal, 61-62. Party, person, distinguished, 23. Penny, plurals of, 19.  Perfect indicative, 78; infinitive, 78-79.  Person, change from one to another in pronouns, 56-57. Person, party, distinguished, 23. Persuade, advise, distinguished, 100. Phenomenon, plural of, 21. Piano, plural of, 18. Pitiable, pitiful, distinguished, 123. Plea, argument, distinguished, 29. Plead, principal parts of, 62. Plenty, distinguished from abundance, 32;
  as adjective and adverb, 109-110. 
Plural of nouns, 18-21; of pronouns, 58-60; of verbs, 89-92;
  of adjectives, 110.
Plurality, majority, distinguished, 31. Portion, part, distinguished, 31.  Possessive case, of nouns, 16; of pronouns, 43. Practicable, practical, distinguished, 123. Predicate, predict, distinguished, 100. Predominance, prominence, distinguished, 32.  PREPOSITIONS, 134-141; misused, 134-139;