Note 13 — GEORGICS. BOOK III.
Reading edition
It has been objected to me, that I understood not this passage of Virgil, because I call Niphates a river, which is a mountain in Armenia. But the river arising from the same mountain is also called Niphates; and, having spoken of Nile before, I might reasonably think that Virgil rather meant to couple two rivers, than a river and a mountain. Dryden.