Pythagoras, Epicurus, and Democritus say, that women have a seminal projection, but their spermatic vessels are inverted; and it is this that makes them have a venereal appetite. Aristotle and Plato, that they emit a material moisture, as sweat we see produced by exercise and labor; but that moisture has no spermatic power. Hippo, that women have a seminal emission, but not after the mode of men; it contributes nothing to generation, for it falls outside of the matrix; and therefore some women without coition, especially widows, give the seed. They also assert that from men the bones, from women the flesh proceed.