Morbus ...etc. Disease is when the members depart from moderation and from the natural composition of action and function, and Galenus says here that diseases are of three kinds, i.e. the first kind which is called {TCD 1299 page and line 26a1} universal disease. The second kind, simple disease. The third kind, compound disease. And universal disease is the disease which affects the whole body, such as fever. And simple disease is disease which is created in the body by one quality such as heat or cold or humidity or dryness. From the quality of heat, namely hectic or ephemeral fever, which is caused by the heat of the sun or by labour. From the quality of coldness, namely congelacio or spasm, which is caused by the coldness of the air or by snow alone. And compound disease is disease caused by the composition of the qualities or humours. From the composition of the qualities, namely heat and dryness, heat and humidity, coldness and humidity, coldness and dryness. From heat and dryness, namely that which is called erysipelas. From heat and humidity, namely that which is called phlegmon. From cold and humidity, namely oedema. From cold and dryness, namely that which is called sclerosis. From the composition of the humours namely dropsy, caused by the moist, viscous humours, and epilepsy and apoplexy and the like are similarly caused. From the composition of the humours, heat with dryness, namely elefancia and cancer and the like.