I was in the second book of the Anabasis.
"Hector's Inheritance or The Boys of Smith Institute"
Horatio Alger
Although the story is discarded by many scholars, it is worthy of note that Ctesias, a kinsman and contemporary of Hippocrates, is mentioned by Xenophon in the "Anabasis" as being in the service of the King of Persia.
"Fathers of Biology"
Charles McRae
The "Anabasis" must be introduced by an historical note.
"The World's Greatest Books, Vol XI."
Edited by Arthur Mee and J.A. Hammerton