This "upstart astrologer," this "fool who wishes to reverse the entire science of astronomy," for "sacred Scripture tells us that Joshua commanded the sun to stand still, and not the earth"--these are Luther's words--was, therefore, beyond the grip of the Holy Inquisition. But a substitute was forthcoming. Giordano Bruno, a Dominican monk, had added to certain heterodox beliefs the heresy of Copernicanism, which he publicly taught from Oxford to Venice. For these cumulative crimes he was imprisoned and, after two years, condemned to be put to death "as mercifully as possible and without the shedding of his blood," a Catholic euphemism for burning a man alive. The murder was committed in Rome on 17th of February, 1600. The year 1543 marks an epoch in biology as in astronomy. As shown in the researches of Galen, an Alexandrian physician of the second century, there had been no difficulty in studying the structure of the lower animals, but, fortified both by tradition and by prejudice, the Church refused to permit dissection of the human body, and in the latter part of the thirteenth century, Boniface VIII. issued a Bull of the major excommunication against offenders. Prohibition, as usual, led to evasion, and Vesalius, Professor of Anatomy in Padua University, resorted to various devices to procure "subjects," the bodies of criminals being easiest to obtain. The end justified the means, as he was able to correct certain errors of Galen, and to give the _quietus_ to the old legend, based upon the myth of the creation of Eve, that man has one rib less than woman. This was among the discoveries announced in his De Corporis Humani Fabrica, published when he was only twenty-eight years of age. The book fell under the ban of the Church because Vesalius gave no support to the belief in an indestructible bone, nucleus of the resurrection body, in man. The belief had, no doubt, near relation to that of the Jews in the _os sacru_, and may remind us of Descartes' fanciful location of the soul in the minute cone-like part of the brain known as the _conarium_, or pineal gland. On some baseless charge of attempting the dissection of a living subject, the Inquisition haled Vesalius to prison, and would have put him to death "as mercifully as possible," but for the intervention of King Charles V. of Spain, to whom Vesalius had been physician. Returning in October, 1564, from a pilgrimage taken, presumably, as atonement for his alleged offence, he was shipwrecked on the coast of Zante, and died of exhaustion.