By which we may understand that the fat is the more or lesse in quantity according to the different temper of the whole body, and of its particular parts; for its compo∣sition, it consists of that portion of the blood which we formerly mentioned, in∣termixt with certaine membranes, nervous fibers, veines and arteryes. The greatest part of it lyes betweene the fleshy pannicle and the common coate of the Muscles, Otherwiseit is diffused over all the body, in some places more, in some lesse, yet it is alwaies about the nervous bodyes, to which it delights to cleave. Most Anatomists enquire whether the fat lye above or beneath the fleshy pannicle. But me thinkes this question is both impertinent and idle; being we often see the fat to be on both sides. It is of a middle temper betweene heat and cold, being it ariseth of the more aery portion of the blood; although it may seeme cold in respect of the efficient cause, that is, of cold by which it concreats. For the rest, moisture is predo∣minant in the fat. The use therof is, to moisten the parts which may become dry by long fasting, vehement exercise or immoderate heat, and besides to give heat, or keep the parts warme. Although it doe this last rather by accident, than of its owne nature, as heated by exercise, or by some such other chance; it heats the adjacent parts, or may therefore be thought to heat them, because it hinders the dissipation of the na∣tive and internall heat; like as cold heats in winter, whereby the bellyes are at that time the hotter. I know some learned Phisitions of our time stiffly maintained, that the fat was hot, neither did they acknowledge any other efficient cause thereof, than tem∣perate heat and not cold. But I thinke it best to leave the more subtle agitation of these questions to naturall Philosophers. But we must note, that at the joints which are more usually moved, there is another sort of fat, farre more solid and hard, than that which we formerly mentioned, often found mixed with a viscid and tough humor like the whites of Eggs, that so it might be sufficient for a longer time to moisten these parts, subject to be hurt by drynesse, and make them slippery & so fitter for mo∣tion, in imitation whereof they usually grease hard bodyes, which must be in frequent motion, as coach wheeles and axeltrees. And there is another kind of fat, which is called Sevum, seame, in one thing differing from the ordinary fat, that is much dryer; the moister and softer portion of the fat being dissipated by the raging heat of the place. For it is found principally about the midriffe, where there are many windings of arteryes and veines, and it is also about the reines, Loines, and basis of the heart. The fat is wasted by long fasting; is dryed and hardened by vehement exercise and immoderate heate. Hence it is that it is much more compact in the palmes of the hands, and soles of the feet, about the eyes and heart, so that it resembles the flesh in densitie and hardnesse; because by the continuall motion and strong heat of these parts, the thinner portion being dissipated & diffused, the more Grosse & terrestriall remaine.