Now it may be asked what peculiarly belongs to this branch: because surgeons assume to themselves the curing of many wounds and ulcers, which I have treated of elsewhere. I can very well suppose the same person capable of performing all these: and since they are divided, I esteem him most, whose skill is most extensive. For my part, I have left to this branch those cases, in which the physician(1) makes wound, where he does not find one; and those wounds and ulcers, in which I believe manual operation to be more useful than medicines; lastly whatever relates to the bones. Which things I shall consider in order, and deferring the bones to another book, I shall in this explain the two former; so treating first of these, which are found indifferently in every part of the body, I shall proceed to those, that fall upon particular parts. CHAP. I. OF CONTUSIONS. Contusions, in whatever part of the body they are, ought as soon as possible to be treated in this manner; the skin of the part, where the pain is, must be cut in several places, and the _grumous_ blood issuing from them must be wiped away with the back of the knife. If it is not taken in time, and there is a redness, so much of the skin as is red _must be cut_; if there is a tumour too, wherever that extends, the same remedy is still the best. Then repellents are to be applied over it; and particularly sordid wool squeezed out of vinegar and oil. But if the hurt be more slight, the same applications without an incision may perform the cure. And if nothing else is at hand, ashes, especially of burnt twigs; if they are not to be got, any other ashes mixed up with vinegar, or even with water. CHAP. II. OF THE OPERATIONS NECESSARY IN SUPPURATED TUMOURS. The foregoing case is easily managed. But there is more trouble with those tumours, that come from an internal cause, and tend to suppuration. That all these are kinds of abscesses, I have elsewhere shewn, and treated of the medicines proper for them: it now remains, that I mention the manual operations necessary for their cure. Wherefore it is requisite, before they grow hard, to cut the skin, and apply a cupping vessel to evacuate any bad and corrupted matter which may have been collected there: and this may be repeated a second and third time, till all the symptoms of an inflammation be gone. Nevertheless, it is not right to trust(2) entirely to the cupping vessel.