Of the Young One in the Womb.
How is the young one engendered in the womb?
The first six days the seed hath the colour of milk, but in the six days following a red colour, which is near unto the disposition of flesh, and then is changed into a thick substance of blood; but in twelve days following this substance is made so thick and sound that it is able to receive shape and form, because a fluid or running substance steepeth on till its birth. And how it is governed every month by the planets, Boetius tells us elsewhere.
Doth the child in the womb void excrement or make water?
No; and the reason is, because he hath the first digestion which is in the stomach; he receives no food by the mouth, but it comes to him at the navel; he therefore makes no urine, but sweats, which at best is but little, and is received in a skin in the matrix, and at his birth is cast out.
Why doth the child come out of the matrix easily after seven, eight or nine months?
Because, saith Galen, when the fruit is ripe, then the ligaments are broken, and so it falls out.