Thessălus
（
Θεσσαλός).
1.
A Greek physician, son of Hippocrates. He passed some of his time at the court of
Archelaüs, king of Macedonia, who reigned B.C. 413-399. He was one of the founders
of the sect of the Dogmatici, and is several times highly praised by Galen, who calls him the
most eminent of the sons of Hippocrates. He was supposed by some of the ancient writers to be
the author of several of the works that form part of the Hippocratic Collection, which he
might have compiled from notes left by his father.
2.
Also a Greek physician, a native of Tralles in Lydia, and one of the founders of the
medical sect of the Methodici. He lived at Rome in the reign of the emperor Nero, A.D. 54-68,
to whom he addressed one of his works; and he died and was buried, and his tomb was to be
seen in Pliny 's time, on the Via Appia. He considered himself superior to all his
predecessors. He is frequently mentioned by Galen, but always in terms of contempt and
ridicule. None of his works are extant.
