Rule X. Verb Omitted.—When a verb, previously used, is omitted, a comma usually takes its place.
EXAMPLES.
“Histories make men wise; poets, witty; the mathematics, subtle; natural philosophy, deep; moral, grave; logic and rhetoric, able to contend.”—Bacon.
“Chaucer painted persons; Spenser, qualities.”
REMARKS.
1. When the comma takes the place of an omitted verb, the main clauses or numbers should be separated by semicolons.
2. Sometimes a comma does not take the place of an omitted verb; as, “Some books are to be tasted, others to be swallowed, and some few to be chewed and digested.”—Bacon.
“Reading maketh a full man, conference a ready man, and writing an exact man.”—Bacon.
Rule XI. Appositives.—A noun in apposition and its modifiers should be separated by commas from the rest of the sentence.