[Footnote 46: Agathias (l. i. c. 21) settles the Sibyl's
cave under the wall of Cumae: he agrees with Servius, (ad.
l. vi. Aeneid.;) nor can I perceive why their opinion should
be rejected by Heyne, the excellent editor of Virgil, (tom.
ii. p. 650, 651.) In urbe media secreta religio! But Cumae
was not yet built; and the lines (l. vi. 96, 97) would
become ridiculous, if Aeneas were actually in a Greek city.]