The Womb has a short Neck, distinguish’d by that Name from the _Vagina_; it is the Passage which reaches from the inner Orifice to the principal Cavity of the Womb: It is about an Inch long. In the Cavity of the Womb, the two _Horns_ dilate themselves, and form particular Bags, each of which contains a _Fœtus_. This Cavity enlarges itself more or less in proportion to the bigness of the _Fœtus_, or the number of Children, as in case of Twins. The Womb is seated in the lower part of the _Hypogastrium_, between the straight Gut and the Bladder. The Cavity where ’tis lodg’d, is call’d the _Pelvis_ or _Basin_, and is larger in Women than in Men, so as to give the Womb liberty to distend it self upon Impregnation; it is tied fast at the bottom, and at the Neck. The Neck is knit before to the Bladder, and the Share-bone, and behind to the straight Gut and the _Os Sacrum_. The bottom is not tied so fast as the Neck, it requiring more liberty to move and dilate it self; but to prevent the shifting of its Seat, the Ligaments are equipp’d, being four in Number, two above, and two below. Having describ’d the Privities of Man and Woman: I come now to my dissertation upon the _Generation_ of Man, and the more particular use and dimensions of the Parts employ’d therein. _Of the _Generation_ of __MAN__._ An Animal cannot be produc’d without a Couple, _viz._ a Male and a Female, each of which performs its part in the work of _Generation_. Their entring on this work is call’d Copulation, which is the joining of the Male to the Female: And both of them are equally transported with a furious and restless Passion, occasion’d by a mix’d motion of pleasure and pain in the _Genitals_, which strongly excites a desire for each other. As this Enjoyment is natural, there needs no Instruction; Instinct in all Animals directs the way of acting, that is most convenient for propagating their Species: And a Man, though brought up in never so great Ignorance, at his Age of Maturity naturally enclines to it, and needs no other Guide but the dictates of Nature to find out the center of Enjoyment. But if Nature had not planted in the _Genitals_ a sense of extraordinary pleasure in the amorous Engagement, Man would seldom give himself the trouble of Copulation: The cause of this pleasure some impute to the mixing of Spirits with the Seed, which give a pleasing tickling; and that this is encreas’d by the fineness and bending of the _Nervous Fibres_ of the parts: Others are of opinion, that the Salt in the Seed, and the Spirits accompanying, prick the parts through which they pass and occasion such an agreeable Titillation: And some give this reason for the pleasure, that as in Eating we have an Enjoyment, which no part but the Tongue and Palate partake of; so in Copulation a peculiar pleasure arises, of which the _Generation_ Organs are only sensible; and that Animals are mov’d to the Act of _Generation_, as they are to Eating.