About Types: The theory of types of fevers in an attempt to give a concise definition and their basic characteristics.
About those who wrote about types or periods: Work in a similar climate to the previous one. Critique of theories formulated about the types of fevers.
About quantity: The increase in the quantity of blood in the human body. The views of Galen and criticism towards other doctors.
About fear and pulse and convulsion and shivering: Examination of the four unhealthy movements of human limbs. Character and causes.