What is Ichor?
It is a thick Matter like the Pus, but of divers Colours.
What is Sanies?
It is a watery Matter that riseth up in Ulcers, almost after the same manner as the Sap in Trees.
What is Virus?
It is a kind of watry Matter, being whitish, yellowish, and greenish at the same time; which issueth out of Ulcers, very much stinking, and is endu'd with corrosive and malignant Qualities.
How many general Causes are there of Tumours?
There are three, viz. the Primitive, the Antecedent, and the Conjunct: The Primitive is that which gives occasion to the Tumours; as for Example, a Fall or a Blow receiv'd. The Antecedent is that which supplies it with Matter, such is the Mass of Blood that thickens and maintains the Phlegmon. Lastly, the Conjunct Cause is the overflowing Blood or Matter, which immediately forms the Tumor.
What regard ought to be had to these three sorts of Causes in the Cure?