Between the Spine of the _Coronal_ Suture and the _Crista Galli_, is a Hole which serves as an Entrance for a _Ductus_, which sinks from the top to the bottom, the length of about two Hairs breadth in the thickness of the inner Table of the _Coronal_: The Root of the upper _Longitudinal Sinus_ is strongly implanted in this Hole, which also affords a Passage to some Sanguinary Vessels appointed for the Nourishment of this inner Table. Many other small Holes are found in divers places of the _Basis_ of the Skull; the chief whereof are those that are observ'd in the _Apophysis Petrosa_, and give Passage to a great number of Vessels that serve for the Nutriment of that part of the Temporal Bone which is call'd the _Tympanum_, or Drum: The other Holes are principally design'd for the Vessels that are serviceable in the nourishing of divers parts of the _Basis_ of the Skull. _After what manner is the opening of the Head or Skull perform'd?_ It is done by sawing it asunder round about and above the Ears; then it is taken off, after having before cut off the Hair, and made a Crucial Incision in the Skin from the fore-part to the hinder, and from one Ear to the other; as also after having {92} pull'd off and laid down the four Corners to the bottom. _How is the Brain anatomiz'd?_ It is done by cutting it Superficially, and by Leaves, in order to discover by little and little the Ventricles, Vessels, and Nerves, with their Original Sources, &c. Or else it is taken entire out of the Skull, (the Nerves having been before examin'd) and laid down; so that without cutting any thing, all the parts of the Brain may be set in their proper places, to find out those that are sought for. * * * * * {93} A TREATISE OF _Straps, Swathing-Bands, Bandages, Bolsters, Splints, Tents, Vesicatories, Setons, Cauteries, Leeches, Cupping-Glasses, and Phlebotomy._ * * * * * CHAP. XVI. _Of Straps, Swathing-Bands, Bandages, and Bolsters._ _What is a Strap?_ It is a kind of Band commonly made use of for the Extension of the Members in the reducing of Fractures and Luxations; or else in binding Patients, when it is necessary to confine them, for the more secure performing of some painful Operation: These sorts of Ligatures have different Names, {94} according to their several Uses, and often bear that of their Inventer. _What is the Matter whereof these Straps are compos'd?_ They may be of divers sorts, but are usually made of Silk, Wooll, or Leather. _What is a Swathing-Band?_ It is a long and broad Band, that serves to wrap up and contain the Parts with the Surgeons Dressings or Preparatives. _Of what Matter are these Swathing-Bands made?_ They are made at present of Linnen-Cloth but in the time of _Hippocrates_, were made of Leather or Woollen-Stuff. _How many sorts of Swathing-Bands are there in general?_