Of the Blood.
Blood is a humour hot, yet temperate, sweet and red, prepared in the meseraick veines, made in the liver of the temperate fat, and aieriall parts of the Chylus and flowes from hence to all parts of the body. Phylosophers affirme that we are nou∣rished with his humour only, Phisicians say with all four. The seeming contrariety may be compo∣sed by the distinguishing: thus blood is often taken for the whole masse conteined in the veines ap∣pointed to nourish the body now this masse is not homogenerall, but of a diverse nature. For the best and most temperate part of the blood is properly and in specie called blood, the hot and dry part of it is called colerick blood, the cold and moist part phlegmatick blood, the cold and dry, melan∣cholick blood, & this diversity is answerable to the qualities of the Chylus whereof it is made, there∣fore when Phylosophers say we are nourished with blood alone they understand the whole masse con∣tained in the veines, which neither Aristotle nor any other Phylosopher will deny to have parts of the foresaid qualities: these parts of the blood thus qualified, must not be taken for excrementi∣tious, but for alimentary humours, since they all nourish the body: here two things are questioned, first whether there be any pure blood in the veins without the 3. humors 2. Whether the blood be only a mixrure of the third sincere humors, so that