Q. For what reason do the menses not come down in females before the age of thirteen?  A. Because young women are hot, and digest all their nourishment.

Q. For what reason do they leave off at about fifty?  A. Because nature is then so exhausted, they cannot expel them by reason of weakness.

Q. Why have not breeding women the menses?  A. Because that then they turn into milk, and into the nourishment of the child:  for if a woman with child have them, it is a sign that she will miscarry.

Q. Why are they termed menstrua, from the word mensis, a month?  A. Because it is a space of time that measures the moon, as she ends her course in twenty-nine days, and fourteen hours.

Q. Why do they continue longer with some than others, as with some six or seven, but commonly with all three days?  A. The first are cold, therefore they increase most in them, and consequently are longer expelling; other women are hot, and therefore have fewer and are sooner expelled.

Q. Are the menses which are expelled, and those by which the child is engendered, all one?  A. No, because the one are unclean, and unfit for that purpose; but the other very pure and clear, therefore the fittest for generation.

Q. Why have not women their menses all one and the same time, but some in the new moon, some in the full, and others at the wane?  A. From their several complexions, and though all women (in respect of men) are phlegmatic, yet some are more sanguine than others, some more choleric; and as the moon hath her quarters, so have women their complexions; the first sanguine, the second choleric.

Q. Why do women easily conceive after their menses?  A. Because the womb being cleansed, they are better prepared for conception.

Q. Why do women look pale when they first have their menses upon them?  A. Because the heat goes from the outward parts of the body to the inward, to help nature to expel their terms, which deprivation of heat doth cause a paleness in the face.  Or, because that flux is caused of raw humours, which, when they run, make the face colourless.

Q. Why do they at that time abhor their meat?  A. Because nature labours more to expel their terms than digest; and, therefore, if they should eat, their food would remain raw in the stomach.

Q. Why are some women barren and do not conceive?  A. 1.  It proceeds sometimes from the man who may be of a cold nature, so that his seed is unfit for generation. 2.  Because it is waterish, and so doth not stay in the womb. 3.  By reason that the seed of them both hath not a like proportion, as if the man be melancholy and the woman sanguine, or the man choleric and the woman phlegmatic.

Q. Why do fat women seldom conceive?  A. Because they have a slippery womb, and the seed will not stay in it.  Or, because the mouth of the matrix is very strait, and the seed cannot enter it, or, if it does, it is so very slowly that it grows cold and unfit for generation.