CHAP. 3.—PARTICULARS RELATIVE TO CHRYSIPPUS AND ERASIS- TRATUS.

In the rules laid down by these professors, changes were effected by Chrysippus with a vast parade of words, and, after Chrysippus, by Erasistratus, son[1] of the daughter of Aristotle. For the cure of King Antiochus-to give our first illustration of the profits realized by the medical art-Erasistratus received from his son, King Ptolemæus, the sum of one hundred talents.

1. Pythias, the daughter of Aristotle, was his stepmother, and adopted him. His mother's name was Cretoxena.