The Greek physician Diocles of Carystus (c. 350 B.C.E.), a student of Aristotle, wrote the first anatomy books (along with the first book of herbal remedies). Around the same time, Greek physicians Herophilus (c. 320 B.C.E.) and Erasistratus (c. 304 B.C.E.)—both of whom lived in Alexandria—performed dissections in public and thus described such human organs as the liver, ovaries, prostate gland, and spleen. They also determined that the place of reasoning was in the brain, not the heart.