Page 1
OF URINES.
CHAP. I. Of the Elements and chief Accidents of Urine.
WHEN the Liquor of the Urine, being either fresh rendred from the body, or putri∣fied by a long digestion, is exposed to a spagirick Analysis, it is wont to be resolved into these parts or principles: In the Distilling, First, ascends whatever of a vinous spirit is in it, diluted with water; but yet in so very small quantity, that it is not easily to be perceived by the taste it self. To this follows a watry liquor, large enough in proportion, with which are mixed some more loose particles of Salt, and Sulphur especially. Third∣ly, There is stilled forth a very penetrative water; which is commonly called the spirit of Urine, but in truth almost without any vinous spirit, and is chiefly phlegm highly sharpned with Salt, and therefore it ascends last, as in the distillation of Vinegar: but forasmuch as the salt of Urine is volatile, but that of Vinegar only in the Flux; therefore the liquor stilled forth, which is greatly impregnated with its parti∣cles, is very acide: That which is imbued with the saline Particles of the other, is exceeding sharp and pricking. It is a sign that this kind of Spirit of Urine (as it is commonly known) ows its sharpness chiefly to the Salt, because, though it be most subtil it will not take fire, but being put to it extinguishes it. After the humidity is wholly exhal'd, another portion of Salt remains with the Earth of the cucur∣bit; to which if a more hot fire be made, that Salt will be sublimed into the Alembick, and the earthy feces only remain. This kind of Anatomy of Urine plainly shows, that the Elements of which its li∣quor is composed, are a great deal of Water and Salt, and a little of Sulphur and Earth, and a very little of Spirit.
The saltness in Urines is perceived by the taste and touch; it comes nearest to a Nitrous salt in savour: It is drawn indeed from saline Particles of things eaten, which being more plentifully exalted by the con∣coction in the Bowels, and the circulation in the Vessels, for the most part go into a Volatile Salt. That is truly Salt and Spirit, by reason of the long accompanying of either together, are gathered into a most strict bond; and therefore it happens, that the Salt it self otherways fixed, is carried up on high, and ren∣dred able for motion, as it were by the wings of the other. Urines contain in them more or less of Salt, according to the disposition of our body, and have it either volatile or fixed, which are therefore of a divers colour and consistency.
That there is Sulphur contained in Urines, their quickly putrifying, and stink, sufficiently testifie: it arises from the fat and sulphureous Particles of Meats, in the concoction being most minutely broken, and boyl'd with the serum and salt; so as also there is less plenty of Spirit in it, than is in Blood, Soot, or the Horns of Animals: wherefore in the distillation of Urine, there ascends nothing almost of an oylie form or fat. But indeed, whilst the blood is circulated in the Vessels, the spirituous and sulphureous little bo∣dies, which fall away from it, do for the most part evaporate out of dores; in the mean time, the saline recrements, and the watery, chiefly constitute the Piss: nevertheless, Urines do always participate a little of sulphur, but its quantity and proportion, is diversly altered according to the various degrees of Con∣coction and Crudity, and thence also the colour and consistence receive many mutations in Urines.
That there is but a very little of vinous spirit in Urines, the defect of it in the liquor distilled forth, also the soon putrifying of the Stale do testifie: but that there is some, the intestine motion of the Parti∣cles in the Urine doth argue, to wit, the departure of the thin from the thick, and the spontaneous sepa∣ration of some parts from others, and a collection of them into a settlement: besides, the saline Parti∣cles (for that they are made volatile) are married to spirituals, and so they are of a more ready motion, and energy; yet according to the divers plenty of Spirits in Urines, and their power, there arise divers manners of hypostases and settlements; also the Urines themselves, sooner or slower putrify.