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.(e) Idcirco quando dilatatur, sanguinem à cavâ venâ in dextrum ventriculum suscipit, nec non ab arteriâ venosâ sanguinem paratum ut diximus unà cum aëre in sinistrum: propterea membranæ illæ demittuntur & ingressui cedunt: nam cum cor coarctatur, hæ clauduntur; ne quod susciperetur per easdem vias retrocedat; eodémque tempore membranæ tum magnæ arteriæ, tum venæ arteriosæ re arteriofæ recluduntur, aditúmque præbent spirituoso sanguini exeunti, qui per universum corpus funditur, sanguiníque naturali ad pulmones delato. Res itaq; semper habet, cum dilatatur, quas prius memoravimus, recluduntur, clauduntur reliquæ; itáque comperies sanguinem qui in dextrum ventriculum ingressus est, non posse in cavam venam retrocedere. Ibid. pag. 330. Vide quoque lib. xi. pag. 411.
Some
