The Nape of the Neck is the usual place of its Application, altho' it may be made in any part of the Body where it is necessary. It sometimes happens that a Surgeon is oblig'd to use a kind of Seton in such Wounds made with a Sword, or by Gun-shot, as pass quite {203} thro' from one side to the other; then the String or Skain must be dipt in convenient Ointments or Medicinal Compositions; and as often as the Dressings are taken away, it will be requisite to cut off the Part soakt in the Purulent Matter, which must be taken out of the Ulcer. _What is a Cupping-Glass?_ It is a Vessel or kind of Vial, made with Glass, the bottom whereof is somewhat broader than the top, which is apply'd to the Skin to cause an Attraction. There are two sorts of these Cupping-Glasses, _viz_, the Dry, and the Wet; the former are those that are laid upon the Skin without opening it; and the latter those that are apply'd with Scarification. _In what Diseases are Cupping-Glasses us'd?_ In all kinds where it is necessary to make any Attraction; but more especially in Apoplexies, Vapours in Women, Palsies, and other Distempers of the like Nature. But the Applications of Cupping-Glasses are altogether different; for in Apoplexes they are generally set upon the Shoulders or upon the _Coccyx_; in Vapours upon the inside of the Thighs; and in Palsies upon the Paralytick Part it self. _What is a Leech?_ It is an Animal like a little Worm which sucks the Blood, and is commonly apply'd to Children and weak Persons, to serve instead of Phlebotomy: Leeches are also us'd for the discharging of a Defluxion of Humours in any Part; as also in the Hæmorrhoidal Veins when they are too full; in the _Varices_ and in several parts of the Face. {204} _What choice ought to be made of Leeches?_ It is requisite to take those that have their Backs greenish, and their Bellies red; as also to seek for 'em in a clear running Stream, and to cast away those that are black and hairy. * * * * * CHAP. VI. _Of Phlebotomy._ _What is Phlebotomy?_ It is an evacuation of Blood procur'd by the artificial Incision of a Vein or Artery, with a design to restore Health. _Which are the Vessels that are open'd in Phlebotomy or Blood-letting?_ They are in general all the Veins and Arteries of the Body, nevertheless some of 'em are more especially appropriated to this Operation; as the _Vena Præparata_ in the Forehead; the _Ranulæ_ under the Tongue; the Jugular Veins and Arteries in the Neck; the Temporal Arteries in the Temples; the _Cephalick_, _Median_, and _Basilick_ Veins in the inside of the Elbow; the _Salvatella_ between the Ring-Finger and the Little-Finger; the _Poplitæa_ in the Ham; the _Saphena_ in the internal _Malleolus_ or Ankle; and the _Ischiatica_ in the external. _What are the Conditions requisite in the due performing of the Operation of Phlebotomy?_