お教え下され。アルゴナウティカのシートン訳なのですが、
これは散文訳でしょうか？
↓

BOOK I

(ll. 1-4) Beginning with thee, O Phoebus, I will recount the famous
deeds of men of old, who, at the behest of King Pelias, down through the
mouth of Pontus and between the Cyanean rocks, sped well-benched Argo in
quest of the golden fleece.

(ll. 5-17) Such was the oracle that Pelias heard, that a hateful doom
awaited him to be slain at the prompting of the man whom he should
see coming forth from the people with but one sandal. And no long time
after, in accordance with that true report, Jason crossed the stream
of wintry Anaurus on foot, and saved one sandal from the mire, but the
other he left in the depths held back by the flood. And straightway he
came to Pelias to share the banquet which the king was offering to his
father Poseidon and the rest of the gods, though he paid no honour to
Pelasgian Hera. Quickly the king saw him and pondered, and devised for
him the toil of a troublous voyage, in order that on the sea or among
strangers he might lose his home-return.
http://www.gutenberg.org/cache/epub/830/pg830.txt