Theses de dolore

XXVII.
Humorous ones are humors, distending the parts by their abundance or weight, or eroding them by their acrimony.

XIIX.
These, in turn, are either natural, mixed with blood in a certain proportion, or excrementitious, separated from the company of the blood.

XXIX.
Spirituous ones are flatus and vapors, sometimes contained in manifest cavities of the parts, sometimes indeed insinuating themselves into the hidden passages of the substance itself.

XXX.
We establish as the proximate efficient causes of the other solution, exceeding qualities of heat and cold, and certain occult properties of things that are lacking specific names.

XXXI.
We judge that moisture and dryness cannot primarily and per se excite pain by their quality.

XXXII.
For since pain is excited by a sudden and violent change, such change cannot arrive except from heat and cold, which are the most effective qualities. But dryness and humidity, being material, require a long span of time to act.

XXXIII.
But these exceeding qualities are either in the spirits, vapors, humors, or the parts themselves contained in the body, or in external things.

XXXIV.
Among the external ones, the most important is the air surrounding us, which, just as it easily receives various qualities, so it most promptly communicates them to us; then there is fire, water, and earth, in whatever manner those are prepared and applied to bodies.

XXXV.
The signs of these efficient causes are diverse according to their diversity: if a solid body has been harming from the outside, it can be known from the patient's indication or the presence of the same, which is detected by the senses, or also from the shape of the wound; but if it has been taken in or slipped