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 Lungs, that Servetus had done before; but says, that no Man had ever taken notice of it before him, or had written any Thing about it: Which shews that he did not copy from Servetus; unless one should say, that he stole the Notion, without mentioning Servetus's Name; which is injurious, since in these Matters the same Thing may be, and very often is observed by several Persons, who never acquainted each other with their Discoveries. But Columbus is much more particular; (e) for he says, That the Veins lodge the whole Mass of the Blood in the Vena Cava, which carries it into the Heart, whence it cannot return the same Way that it went; from the Right Ventricle it is thrown into the Lungs by the Pulmonary Artery, where the Valves are so placed as to hinder its Return that Way into the Heart, and so it is thrown into the Left Ventricle, and by the Aorta again, when enliven'd by the Air, diffused through the whole Body.