RULE XII.—PRONOUNS.
When a Pronoun has two or more antecedents connected by and, it must agree with them jointly in the plural, because they are taken together: as, "Minos and Thales sung to the lyre the laws which they composed."—STRABO: Blair's Rhet., p. 379. "Saul and Jonathan were lovely and pleasant in their lives, and in their death they were not divided."—2 Sam., i, 23.
"Rhesus and Rhodius then unite their rills, Caresus roaring down the stony hills."—Pope, Il., B. xii, l. 17.