This 1525 edition of Hippocratic Corpus includes 60 ancient Greek medical works based on the teachings and essays of Hippocrates ( 460 BCE–370 BCE). The 800-page book covers a wide range of topics, from epidemics to infertility, head injuries, dreams, and the four humors. Considered the founder of Western medicine, Hippocrates is known for developing the theory of the four humors—blood, yellow bile, black bile, and phlegm—and identifying their influence on the body and emotions.