The first of them is light,113 that is, when the external heat is kindled in the natural and radical juices, and in the roots that are in the substance of the little veins, at the time the moisture called rose is kindled. The second is in the moisture which is in the flesh, and when it is dispersed, it can be cured at times by food alone, and that is when the fluid called cambium is kindled.114 The third115 form is the worst of them, when the external heat deepens itself in the close spermatic members; and this is when the moisture called gluten is corroded (?), for it binds the members together.