CHAP. III. Of the Mothers Blood, the other principle of Generation.
THE other principle of our Generation is the Mothers Blood, to which we * 1.1 ascribe the Faculty of suffering onely, and not of dooing, that is to say, it is onely a principle which is wrought vpon by the seed, but itselfe worketh not in the generation of man.
Of this blood are the Parenchymata of the bowels made, as also the flesh of the Muscles; with this as well the spermaticall as the fleshy parts are nourished, doe en∣crease * 1.2 and attaine their seuerall perfections. This bloude wee thinke is of the same nature with that which at certaine times euery moneth is purged out by the wombe, in which re∣spect Hippocrates first called it 〈 in non-Latin alphabet 〉〈 in non-Latin alphabet 〉, that is, the Menstruous or monthly bloode. The Nature of this blood entangled in a thousand difficulties we will make plaine by this definition. The Menstruous blood is the excrement of the last Aliment of the fleshy parts, * 1.3 which at certaine times and by standing periods is in a moderate quantity purged by the wombe, but originally ordained for the Generation and Nourishment of the New crea∣ture. This definition expresseth six heads concerning the menstruall blood: the matter, the Efficient cause, the vniuersall time, the particular time, the quantity, the wayes of euacu∣ation, and the vse which hath the nature of the finall cause.
The matter of the menstruous blood is the ouer plus of the last Aliment. For in the na¦ture of woman there is a superfluity more then she spendeth for many reasons. First, be∣cause her heate is but weake, and cannot discusse or euaporate the reliques lifte after the parts are satisfied; secondly because of the softnesse and loosenesse of their flesh; whence it is that a womans body is scarsely perspirable, that is, in respect of men they sweate but lit∣tle. Thirdly, by reason of their course of life and order of diet. For they eate more moist meates, they vse bathing oftner, they sleepe more, and in a word their life is more sedentar•• and idle, at least they vse lesse exercise; for these reasons a woman among all creatures is followed with these monthly euacuations.
We call the matter of this bloud an Excrement, not that it cannot bee assimulated or is of a hurtfull or noxious quality like an vnprofitable excrement, but because the quantitie thereof redoundeth after the flesh of the parts is satiated and filled, and is returned into the veines and thence as an excrement vomited out by Nature offended with an vnprofitable