See Galen, In Hipp. De articulis comm. 18a.338.18, 747.11. Andreas of Carystus, physician of Ptolemy IV Philopator, lived until 217 BC. An early follower of Herophilus, he wrote on pharmaceutical plants and snakebites, and commented on the relation of marrow to bone. His books On False Beliefs and On the Genealogy of Physicians defended the views of the Herophilean school. See Von Staden 1989, 472-77.