19. Stygis flúminis. We say 'river Styx,' but 'Mississippi River.'
quó, ablative of means.
20. necesse. See the note on 23, 3.
possent. The subjunctive is used with antequam to denote that the action is expected or intended.
21. in. We say 'over.'
25. prius. Notice that Latin is here more exact than English, using the comparative because only two actions are spoken of.
dedisset, subjunctive because indirect. Charon said nisi dederis (future perfect), nón tránsveham, 'unless you first give (shall have given), I will not carry you across.'
28. 1. mortuí, used as a noun, 'of the dead man.'
eó cónsilió, 'with this purpose,' 'to this end.' The clause ut … posset is in apposition with cónsilió.
6. Ut. Compare 27, 14.