’Tis reported, that some Persons have three Testicles, and that others are so slenderly provided, as to have but one; tho’ either of the cases happens very rarely. And Animals which have their Testicles situated within, are always accounted more lascivious than others. There are four _spermatick Vessels_ belonging to the Privy Parts of a Man, two whereof are Arteries, and the other two Veins. The two spermatick Arteries spring from the Trunk of the _Aorta_; and run obliquely upon the _Ureters_, and along the _Muscle Posas_, ’till they arrive at the _Groin_, where they are receiv’d by a production of the _Peritonæum_, and so conducted to the Testicles. The two spermatick Veins branch out from the Testicles towards the _Vena Cava_. The Right extends it self straight to the Trunk of the _Cava_; but the Left terminates in the emulgent Vein. In their progress, they are join’d by small Veins from the _Peritonæum_, and the neighbouring Muscles, which are loaded with the superfluous Blood of those parts, in order to lodge it in the _Cava_. The spermatick Vessels are larger in Men than Women; and in both Sexes the Arteries are always stronger than the Veins. For the use of these Vessels, the Blood runs in the two Arteries straight to the Testicles, each of them dividing into two small Branches, the better to penetrate its Substance, by entring at several places, and to procure an exact separation of the seminal Particles, that accompany the Arterious Blood. And when this is perfected, the remainder of the Blood enters the Branches of the Veins, in order to return to the _Cava_. The _Valves_ in the Cavity of the Veins are plac’d at certain Intervals, in order to prevent the Arterious Blood from falling down. They are serviceable in promoting the ascent of the Blood, and their natural Disposition conducts it to the _Vena Cava_. _Of the _Privy Parts_ of a __WOMAN__._ To pursue the method I have hitherto observ’d, I shall begin my Description of the Privities of a Woman, with the external Parts. The external Orifice is commonly call’d the _Pudendum_; ’tis compos’d of several parts, as the _Pubes_, the _Mons Veneris_, the Lips, and the great Slit. The _Pubes_ is seated on the forepart of the Share-bone, just above the _Pudendum_; and to keep off the annoyance that might arise from the hardness of the Bones in the amorous Adventure, it is rais’d and consists of Fat, which serves as a Cushion. _Mons Veneris_, rises like a little Hill about the great Lips, and is cover’d, as well as the _Pubes_, with a pretty good quantity of rough curling Hair, which begins to spring when the Female enters her Thirteenth or Fourteenth Year: It is seated a little lower than the _Pubes_.