Statistics for occurrence #1 of “Ostia” in book 7, commline 29 of John Conington, Commentary on Vergil's Aeneid, Volume 2:
...Atque hic Aeneas 6. 680. For
atque comp. 6. 162., 10. 219, for hic
1. 728. Prospiceres arce ex summa
4. 410. Lucum: there is still a wood in
the Isola Sacra, and a great forest, Selva
di Ostia , extends south along the coast
from the Stagno di Ostia.
...