Theses medicae de febrium continuarum diagnōsi & therapeia

which a putrefying humor ignites in the larger vessels that run between the armpits and the groins. The other is symptomatic, which follows as if a companion due to the putrefaction of some internal organ or part. And that which arises from erysipelas of the liver, spleen, kidney, or any part, is called typhodes fever resembling typhus or causing mental clouding: that which arises from the phlegmon of these or more significant parts, such as from pneumonia, pleurisy, or phrenitis, is called phlegmonodes fever caused by inflammation. Both, however, are symptomatic and continuous.

VII.

A putrid continuous fever, which I have called primary, receives its species from the nature of the prevailing humor. For if the blood of the veins and arteries, when it is seized by putrefaction and fire, is well-tempered and constituted from an equal mixture of the four humors, it ignites a synochus putrida putrid continuous fever. If it is hotter, and contains more bile than the other humors, it makes an absolutely continuous tertian. If the burning of this is great, diverging into the heart and precordia, and besieging them, a true Causus burning fever exists. But if the blood is phlegmatic, ignited and putrefying, it produces a continuous daily fever. If melancholic, a continuous quartan.

IIX.

Furthermore, a pestilent fever does not contaminate by one heat, but by a pestilent and malignant destruction, sometimes the spirits, sometimes the humors, sometimes the substance of the parts: hence differences arise, which we will set forth later.

IX.

Regarding the fact that some make other differences of fevers, such as ausodes fever with heat and sweating, palmodes throbbing fever, and lypyria fever with internal cold and external heat, these fevers are continuous and burning, increased by a new symptom.

X.

Common signs of all fevers are a rapid and frequent pulse, sometimes also unequal: languor of strength and weakness with a spontaneous heaviness and dissolution of the body. Heat is either sharp and stinging on the outside, or certainly troublesome within, which sometimes also breaks forth from the nostrils in a heated breath.