#silberer

Namely that the semen of a man is putrefied in a closed cucurbit per se, with the greatest putrefaction in a horse's belly for 40 days or until it comes to life and moves and stirs, which is easily to be seen.... After such a time it will look something like a man but transparent without a body. So after this it is daily fed whitish (weisslich) with the Arcano sanguinis humani [the water of life that nourishes the fœtus] and nourished about 40 weeks and kept in the even warmth of a horse's belly. A real live human child will come forth with all members like another child that is born of a woman but much smaller. We call it homunculus and it should then be brought up just like another child with great diligence and care till it comes to its days of understanding. That is now the highest and greatest mystery that God has let mortal and sinful man know. For it is a miracle and magnale Dei, and a mystery above all mystery and should also be kept a mystery fairly till the judgment day, as then nothing will stay hidden, but all will be revealed.

...to be noted that countless alchemic scribblers who did not understand the works of the "masters" worked with substances like urine, semen, spittle, dung, blood, menstruum, etc., where the dim idea of procreative essence in these things came into play...