22.1), the other on orthopnoia (Hippiatrica Parisina 456 = Hippiatrica Berolinensia 27.1). In
both, Apsurtos addresses Secundus as hippiatros, “horse-doctor.”
CHG v.1; McCabe (2007).
Anne McCabe
M. S ⇒ S
Seleukos of Alexandria (ca 10 BCE – ca 30 CE)
Taught and wrote in Rome; compelled to commit suicide by the emperor Tiberius (Suet.,
Tib. 56). D L twice cites Seleukos’ On Philosophy: 3.109 for Plato ̄n of
Rhodes, a student of P, and 9.11–12 for the transmission of H’ book
to mainland Greece.
FGrHist 1056 F2–3.
PTK
Seleukos of Seleukeia on Tigris (165 – 135 BCE)
Studied with Babylo ̄nian astronomers and astrologers (S 16.1.6), responded to
K M, and preceded H. Seleukos argued the kosmos was
infinite since no boundary could exist (cf. A T), and hypothesized a mech-
anism for the long-known lunar influence on tides, addressing two objections to heliocen-
trism, the apparent absence of stellar parallax and terrestrial rotation. His adherence to
heliocentrism is inferred from P, Plat.Q. 8.1. According to Seleukos, the rotation of
the Earth and the orbital motion of the Moon disturbed the intervening pneuma, thus
swelling the Ocean. Tidal irregularity was proportional to the Moon’s distance from the
Earth’s equatorial plane, but tides differed from sea to sea, and the monthly tidal cycle had
seven phases. He may have proposed the system recorded by T S 3.33, in
which the spheres of Venus, Mercury, and the Sun are nested, and together orbit the Earth
on a common hollow sphere.
P.T. Keyser, “Seleukos,” BEA (2007).
PTK
Seleukos of Tarsos (200 – 100 BCE?)
Wrote On Fishing (Halieutikos logos). Athe ̄naios describes Seleukos as a competent specialist
(Deipn. 1 [13c]), who argues that the parrot-fish (skaros) never sleeps and cannot be caught by
night (Deipn. 7 [320a]).
NP 11.364–365 (#10), C. Hünemörder.
Arnaud Zucker
Se ̄mos of De ̄los (300 – 150 BCE?)
Geographer and antiquarian, wrote Ne ̄sias, On Paros (one book), On Pergamum (one book),
Periodoi (two books, lost), and a treatise on islands (Souda Sigma-327, calling him gram-
matikos). Athe ̄naios quoted extensively from Se ̄mos’ De ̄lias (eight books) treating geog-
raphy, antiquities, culture, religion, and curiosities of De ̄los (Deipn. 3 [109e–f ], 8 [335a–b],
SELEUKOS OF ALEXANDRIA