[2] Bekker _Index_.

The books of Sextus Empiricus furnish us with the best and
fullest presentation of ancient Scepticism which has been
preserved to modern times, and give Sextus the position of one
of the greatest men of the Sceptical School. His works which are
still extant are the _Pyrrhonean Hypotyposes_ in three volumes,
and the two works comprising eleven books which have been united
in later times under the title of [Greek: pros mathêmatikous],
one of which is directed against the sciences in general, and
the other against the dogmatic philosophers. The six books
composing the first of these are written respectively against
grammarians, rhetoricians, geometricians, arithmeticians,
astronomers and musicians. The five books of the latter consist
of two against the logicians, two against physics, and one
against systems of morals. If the last short work of the first
book directed against the arithmeticians is combined with the
one preceding against the geometricians, as it well could be,
the two works together would be divided into ten different
parts; there is evidence to show that in ancient times such a
division was made.[1] There were two other works of Sextus which
are now lost, the medical work before referred to, and a book
entitled [Greek: peri psuchês]. The character of the extant
works of Sextus is similar, as they are all directed either
against science or against the dogmatics, and they all present
the negative side of Pyrrhonism. The vast array of arguments
comprising the subject-matter, often repeated in the same and
different forms, are evidently taken largely from the Sceptical
works which Sextus had resource to, and are, in fact, a summing