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Hand very well waflied with a Ball, he may perceive innumerable littfeRidges, of equal bigne^s and distance, and every where running Parallelone with anoiher; and especially upon the Ends and sirst Joynts of the Fin-gers and Thumb, upon the top of the Ball, and near the root of the Thumb4- alittle above the Wrist. In all which places, they are very regularly di-sposcd into Spherical Triangles, and EUipticks. Upon these Ridges standthe Poren, all in even Rows, and of that Magnitude,, as to be visible to avery good Eye without a Glass. But being vtewed with one, every PoreF '£' s - looks likea little Fountain, and the Sweat may be scen to stand therein, asciear as Rock-water, and as osten as it is wiped off, to spring up withinthemagain. That which Nature intends in the position of these Ridges is,That they may the bester fuit with the Use andMotion of the Hand: thosc of thelower side of every Triangle, to the Bending in or Clutching of the Fingers ;and thosc of the other two sides, and of the EUipticks, to the Pressure ofthe Hand or Fmgers Ends against any Body, requiring them to yield to theRightand Lest. And the Pores are placedupon these Ridges, and not inthe Furrows which lic between them, that so their Structure might be themore sturdy, and less liable to be depraved by Comprestion ; whereby onlythe Furrows are dilated or contracted, the Ridges constantly maintainingthcmsclves, and so the Pores unaltcred. And for the fame Reafon, thePorts are also very large, that they may stili be the better preserved, tho’ theSkin be never so much tompressed and Condensed, by the constant use andlabour of the Hand ; and so thosc of the Feet, notwithstanding the Com-presson of the Skin by the Weightof the whole Body.

These Pores are a very convenient and open Paflage for the discharge ofthe more noxious and perspirable parts of the Blood : which by the continua!use of the Hands and Feet, are plentifully brought into them. Wbence iris, that many Hypochondriacal Men, and Hysterical Women, havealmostacontinualBurningin the Soles of their Feet, and the Palms of their Hands: Yetnot on the top oi their Feet er back of their Hands; which being lessdilposedto rective the noxious p.irts, are therefore unfurnifht with this kind ofPores.

ßurrul

Tut Ports of VII. Not many Years sin ce, there was in thisCountry (near Leyden) aftfruMhtTio-. Student, who being much addicted to the Study of Astronomy, and spend-' tp. j n g ver y many Nights in Star-gazing, had, by the Nocturnalwet and coldXemper of the Ai ’, in such a manner obstructed the Pores of his Skin, thatlittle or nothing exhaled from his Body ; which appeared hence, btcausethat the Shirt, he had worn 5 or 6 Weeks, was theil as white,, as if he hadwomit but one Day. In the mean while he gathered a Subcutaneous Wf.:ter, of which yet he was a^terwards wellcured.

r, »-.Yaijr/. VIII. i. M/ Lord Verulam observes, that Motion and Warmth fof whichtWo Friction consiss) draw forth into the Parts new Juice and Vigor, and.. ii 'p n i.o£. conduce much to Longevity. And Mr. Boyle observes, how in our Stahles aHerse wtllC'jrry’d is half Fed ; and how forne can teli by the Milkof their

Asses

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