A fever in which the heat is hidden inside and the cold appears outside, that is, lipiria

This fever is in most cases mucous, but sometimes it can also be yellow-billed from very thick yellow bile. As for how it can be mucous, the point here is that when the mucus residing inside the organs heats up and rots, it heats the place where it is located, and since it does not dissolve, it does not heat up much the extent of the outer coverings of the body in vapors spreading from it; since the force of heat is poured out only into the damaged area, the outer integument of the body is devoid of warmth and cold, especially if the outer integument contains damp, glassy cold mucus. In addition, mucus often gives off non-putrefactive vapors, which nevertheless rise and increase warmth. Heat accompanies the vapor for a short time and then is separated from it, just as it is separated from the vapor of heated water. When the warmth leaves the vapors, which are very cold at the core until they rot, they return back, and the outer coverings of the body become colder.

And regarding how such a fever can be yellow bile, we will say: when the yellow bile is not abundant and is hidden inside and it rots and heats the place where it is located, and no part of it disperses throughout the body, then what we said about corresponding mucus. This yellow gall fever is sometimes called typhudis, while lipiriya is the generic name for all such fevers; it lasts longer than half a day.

The objector has the right to say: how can there be a fever if warmth does not spread from the heart throughout the body, because the disease that you describe is from the category when warmth does not spread from the heart throughout the body. And the answer to this is: when defining such things, we mean the condition if there is no obstacle. So, for example, water is defined as something cold and wet, and they mean: if it remains alone with its basic qualities and nothing interferes, or heavy is defined as something rushing downwards, if it remains alone with its qualities and nothing interferes. And with all these fevers, warmth reaches the heart, rushes through the arteries and spreads, but in some places an obstacle arises, as happens if you put ice on this place. As for the harmfulness of heat in practice, it is inevitable.