GALEN ON THE THERAPEUTICS TO GLAUCON

Ed. Chart. X. [350.] Ed. Bas. IV. (200.)

...concerns contribute to this. If it should happen that many other sick people are seized by tertian fevers original: "tritaiois" (Greek) / "tertianis" (Latin); a fever that recurs every third day, typically caused by yellow bile. at that same time, this would be the greatest sign in addition to those already mentioned. If all these signs are present, or at least the most significant and timely of them, and a violent thirst takes hold of them, or if vomiting of bile or sweating occurs, or both, then the nature of the fever would be clearly evident. If the person then ceases to be feverish after these symptoms, I mean this fever that is obvious to everyone and characterized by its movement, yet there remains in the movement of their arteries the pulse that specific irregularity characteristic of fevers, you could firmly declare it to be a tertian fever. You would be as certain as if you had already seen the attack return on the third day.

Chapter 6. As for the quartan fever original: "tetartaios" (Greek) / "quartana" (Latin); a fever that recurs every fourth day, traditionally associated with black bile and the spleen., for I must also write its signs for you, it displays its clearest evidence at the very beginning of the attacks, while the sick are still shivering. Their pulses become quite rare and slow. However, during the peaks of the illness, or while it is still increasing, the pulses must necessarily be fast and frequent. There is preserved...