different temper of the whole body, and of its particular parts. For its composition, it consists of that portion of the blood which we formerly mentioned, intermixt with certain membranes, ner∣vous fibers, veins, and arteries. The greatest part of it lies between the fleshy Pannicle, and the common coat of the Muscles. Otherwise it is diffused over all the body, in some places more, in some less, yet is always about the nervous bodies, to which it delights to cleave. Most Anato∣mists enquire whether the fat lie above or beneath the fleshy Pannicle. But me-thinks, this questi∣on is both impertinent and idle; being we often see the fat to be on both sides. It is of a middle temper between heat and cold, being it ariseth of the more aery portion of the blood; although it may seem cold in respect of the efficient cause, that is, of cold by which it concretes. For the rest, moisture is predominant in the fat. The use thereof is, to moisten the parts which may be∣come dry by long fasting, vehement exercise, or immoderate heat; and besides, to give heat, or keep the parts warm. Although it do this last rather by accident, than of its own 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 native and internal heat; like as cold heats in winter, whereby the bellies are at that time the hotter. I know, some learned Physitians of our time stiffly maintained, that the fat was hot; neither did they acknowledge any other effici∣ent cause thereof, than temperate heat, and not cold. But I think it best to leave the more subtil agitation of these questions to natural Philosophers. But we must note, that, at the joints which are more usually moved, there is another sort of Fat, far more solid and hard, than that which we formerly mentioned, often found mixed with a viscid and tough humour like the whites of Eggs, that so it might be sufficient for a longer time to moisten these parts, subject to be hurt by driness, and to make them slippery, and so fitter for motion; in imitation whereof they usually grease hard bodies, which m••st be in frequent motion, as Coach-wheels and Axletrees. And there is another kind of fat, which is called Sebum, seam, in one thing differing from the ordinary fat, that it 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 Midriff, where there are many windings of arteries and veins; and ••t is also about the reins, loins, and basis of the heart. The Fat is wasted by long fasting; is dried and hardened by vehement exercise and immoderate heat. Hence it is that it is much more compact in the palms of the hands, and soles of the feet, about the eyes and heart, so that it resembles the flesh in density and hardness; because by the continual motion and strong heat of these parts, the thinner portion being dissipated and diffused, the more gross and terestrial remains.