ὅσον ἀπὸ τοῦ ἱεροῦ ἐφεωρᾶτο τῆς νήσου → as much of the island as was in view from the temple
clearly: P. and V. σαφῶς.
expressly: P. διαρρήδην.
by name: P. ὀνομαστί.