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), _non transveham_, 'unless you first give (shall have
given), I will not carry you across.'

28. 1. mortui, used as a noun, 'of the dead man.'

eo consilio, 'with this purpose,' 'to this end.' The clause ut ... posset
is in apposition with consilio.

6. Ut. Compare 27, 14.

8. quod cum fecissent, 'and when they had done this.' See the note on
_quibus_, 20, 1.

13. Stabant, 'there stood.' What is its subject?

15. mortuis, dative of indirect object.

et. Notice that ambiguity is avoided by a change of conjunctions, et