But against this, all our modern authors affirm that the ancients are very erroneous, inasmuch as the testicles in women do not afford seed, but are two eggs, like those of a fowl or other creatures; neither have they any such offices as in men, but are indeed an ovarium, or receptacle for eggs, wherein these eggs are nourished, by the sanguinary vessels dispersed through them; and from hence one or more, as they are fecundated by the man’s seed, are conveyed into the womb by the oviducts. And the truth of this, say they, is so plain, that if you boil them, the liquor shall have the same taste, colour and consistency with the taste of bird’s eggs. And if it be objected that they have no shells, the answer is easy; for the eggs of fowls while they are in the ovary, nay, after they have fallen into the uterus, have no shell: and though they have one when they are laid, yet it is no more than a fence which nature has provided for them against outward injuries, they being hatched without the body, but those of women being hatched within the body have no need of any other fence than the womb to secure them.
They also further say, that there are in the generation of the foetus, or young ones, two principles, active and passive; the active is the man’s seed elaborated in the testicles out of the arterial blood and animal spirits; the passive principle is the ovum or egg, impregnated by the man’s seed; for to say that women have true seed, say they, is erroneous. But the manner of conception is this; the most spirituous part of the man’s seed, in the act of copulation, reaching up to the ovarium or testicles of the woman (which contains divers eggs, sometimes fewer) impregnates one of them; which, being conveyed by the oviducts to the bottom of the womb, presently begins to swell bigger and bigger, and drinks in the moisture that is so plentifully sent hither, after the same manner that the seed in the ground suck the fertile moisture thereof, to make them sprout.
But, notwithstanding what is here urged by modern anatomists, there are some late writers of the opinion of the ancients, viz., that women both have, and emit seed in the act of copulation; and even women themselves take it ill to be thought merely passive in the act wherein they make such vigorous exertions; and positively affirm, that they are sensible of the emission of their seed in that action, and that in it a great part of the delight which they take in that act, consists. I shall not, therefore, go about to take away any of their happiness from them, but leave them in possession of their imaginary felicity.
Having thus laid the foundation of this work, I will now proceed to speak of conception, and of those things which are necessary to be observed by women from the time of their conception, to the time of their delivery.
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