327. Firstly, chylification must take place; in other words, food must be taken; when taken, comminuted; and when comminuted, digested into chyle (b). Secondly, what is chylified, must undergo sanguification; that is to say, the chyle must be introduced into the veins, inaugurated into the blood, copulated with it, and thus itself reduced into blood (c). Thirdly, what is sanguified must undergo purification; that is to say, the purer portion of both the blood and the serum, must be separated from the less pure portion, or that of a middle quality, and from the stale portion, or that of the lowest quality (d). Four/lily, what is purified, must undergo chylification; the purest blood and its corresponding serum must be remitted into circulation; and the vilest blood and its corresponding serum must be excreted and eliminated; but the blood of a middle quality must be corrected, reduced into salivary juices, and restored to the chylopoietic organs, to serve as a menstruum both for preparing the new chyle, and for introducing it into the blood (e). Thus this last link is succeeded by the first of the chain.
(b) See the Chapters on the Tongue, the Pharynx and OEsophagus, and particularly those on the Stomach and Intestines.
(c) See the Chapters on the Liver and Thoracic Duct.
(d) The blood, and particularly the serum thereof, as we observed in our Analyses, may be divided into three kinds or classes: to the first class belongs the pure, virgin, newly-conceived or regenerated blood, perfectly accommodated to every use, and perfectly obedient to the cerebrum, the sensoria, and the muscles, the true universal essence of the third order (n. 314); thus the vicegerent of the soul in the ultimates of the kingdom, that is to say, in the body. To this class also belongs a corresponding serum, a serum kindred and proximate to such blood. To the second class belong the blood and serum of a middle quality, the blood which is comparatively old, has circulated many times, is less obedient, more obdurate, and acts rather from gravity than elastic force, and being numbered among antiquated things, requires, therefore, to be recruited and regenerated: likewise the corresponding serum, which has in it many elements of the genuine blood, but which are connected and fettered one with another; and which serum, therefore, requires to be corrected and rectified, that is, remitted into the intestines. To the third class belongs the absolutely outworn, lifeless, worthless, rigid, concreted, and inert blood; and the corresponding serum. Respecting the blood and serum of the second order, see Chapters I. and II., where they treat of the Salivary Glands; also the Chapters on the Pancreas, the Spleen, and the Liver; which organs reduce and break up this middle blood, and send it away into the salivary juices, into the suecus pancreaticus, or the hepatic bile. Respecting the blood of the last kind or sort, see the Chapter on the Liver and Gall-bladder and respecting the serum of the same kind, see the Chapters on the Kidneys and the Urinary Bladder.
(e) That only the blood and serum of a middle quality is expended in preparing the chyle, see the Chapters on the Liver, the Pancreas, and the Spleen.
