And thus have I shown how a child-bearing woman ought to govern herself each month during her pregnancy. How she must order herself at her delivery, shall be shown in another chapter, after I have first shown the intended midwife how the child is first formed in the womb, and the manner of its decumbiture there. CHAPTER III. _Of the Parts proper to a Child in the Womb. How it is formed there, and the Manner of its Situation therein._ In the last chapter I treated of conception, showing what it was, how accomplished, its signs, and how she who has conceived ought to order herself during the time of her pregnancy. Now, before I come to speak of her delivery, it is necessary that the midwife be first made acquainted with the parts proper to a child in the womb, and also, that she be shown how it is formed; and the manner of its situation and decumbiture there; which are so necessary to her, that without the knowledge thereof, no one can tell how to deliver a woman as she ought. This, therefore, shall be the work of this chapter. I shall begin with the first of these. SECT. I. _Of the Parts proper to a Child in the womb._ In this section I must first tell you what I mean by the parts proper to a child in the womb; and they are only those that either help or nourish it, whilst it is lodged in that dark repository of nature, and that help to clothe and defend it there, and are cast away, as of no more use, after it is born; and these are two: viz. the umbilicurs, or navel vessels, and the secundinum. By the first it is nourished, and by the second clothed and defended from wrong. Of each of these I shall speak distinctly: and, first, _Of the Umbilicurs, or Navel Vessels._ These are four in number: viz. one vein, two arteries, and the vessel which is called the urachos. 1. The vein is that by which the infant is nourished, from the time of its conception till the time of its delivery; till, being brought into the light of this world it has the same way of concocting its food that we have. This vein ariseth from the liver of the child, and is divided into parts when it has passed the navel; and these two are divided and subdivided, the branches being upheld by the skin called _chorion_ (of which I shall speak by and by), and are joined to the veins of the mother’s womb, from whence they have their blood for the nourishment of the child. 2. The arteries are two on each side, which proceed from the back branches of the great artery of the mother; and the vital blood is carried by those to the child, being ready concocted by the mother.