SIGNORVM.

It is necessary to distinguish these. For some pain pulsates, and therefore is called a pulsating pain, which is proper to inflamed arteries. Another is piercing, by which tunics membranous layers are accustomed to be affected, such as we perceive during pleurisy. Bordering on this is acute pain, by which a limb seems to be affected as if by a piercing drill or an impacted stake. Such pain, however, is accustomed to be excited in the colon intestine by glassy phlegm viscous humor, just as in the membranes enveloping the brain when they are badly affected by the same phlegm. Another is pain which is called tension-like, by which a badly affected limb is so stretched that it seems as if it might burst: this is indeed proper to veins: and therefore it is a common symptom of all inflammations, and signifies an abundance of humors and flatulence. Likewise, the pain by which parenchymata functional tissue of organs are badly affected is heavy. Such also suits the brain when badly affected by thick phlegm, and limbs suffering from calculus, such as the kidneys and bladder. Another pain is deep, which if it is bruising, signifies that the membranes of the bones are badly affected, but if it bruises nothing, it declares an affection of other tunics. Furthermore, there is superficial pain, which announces that the skin and the flesh nearest to the skin are seized by disease. A pruritic itching pain also, like an ulcerous one, argues for the acridity of humors, and firstly and of itself affects the skin, and secondly and by accident affects the flesh. Likewise, the pain,