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Show \ 1058 7 Of [/3052l.1iliZCVQ/[ Stzzntion. Book Ill. 'OOlil". forming, ley'eral models of Light. commonlycalled Colours as lo many a . parcucies, made up ofdivcrlerelleétious off ight, proceeding from Prbmi. neneies and Cavities, from the Convex and Concave Surfaces of Opaque ['0dirgs, whole greater or leis AFperities, carding fainter or deeper ihades (is {0 many allays to the Light) do produce bright or dark Colours, Howin from the various refiec'iions of Light which carry along with it, the Fjoum of outward Objects, araied with Beams, prelented to the Eye, lmderathc form of a Pyramid, the Bali: relating to the Object, and the Cone to [he Eye, ii) that the Rays, beautified with Colours and Figures of outward Objeé‘rg, do interfeét each other, and being oia fiibtle retliereal Nature, do pene- Nerves, by whofe mediation the Appulfes of varioufly tuned Air, Firft made upon the Membrane of the Coded, are thence continued to the body of the Nerves, feated in the Safe of the Medulhz oblvflgata, through whore fubf'tance, and that ofthe Form'x, they are communicated by man continued Fibres, to the Corpm calla/um, in which the common Senfe is refi): dent, judging and determining Sounds, the feveral Motions of figured Air, refleéied from folid Bodies, making {oft vibrations upon the Tympdrmm (and Fibres of the Membrane invefling the Cooled) which are from thence handed by continued motion of Nerves and Fibres to the common Senfory. trate the tranfparent Membranes and Humors of the Eye, which being of greater or leis Denfity, do make different Refraétions of Light, Fame bend. ing rewards, and others from the perpendicular, till at laii tliefe varioufly C H A P. rerrafied Rays of Light, make their appullt‘s upon the (Re/ind, which is LVII. an expanded Coat, framed of many Fibres, as Teudrils {prouting out of the Op:iclt Nerves, which being afli‘fled with the motion of Figured Light, Of the Chine. do carry it up to, and through the Merritt/[a nblongahz and For/zix, to thecommon Senlory, lodged in the more inWard l'receiles oi. the Brain : where the firokes of modelled Light, made upon the Retina, are determined by an animal perception of the common Settle. As to the Scull of Taf‘ting, diver-{e iiipid Bodies being broken into final! Particles, and impregnated with halival Liquor, derived from the Glands of the iVlouth : The extraéted oily, and [aline Particles, as they confifl olivari- ous Figures and Maguitudes, rcprefented in the ruder Cubes, Pyramids, Cylinders, Trigons, Prilhies, Trapezia, Rliombi, of diverfe Salts, do produce different Tafls, as they make various Appiilles upon the inward coat of the Tongue, corifiliiiig of many Fibrils , of the Fifth pair of Nerves, Firli afl‘eé‘ted with the motion of fulphureous and faline Particles, in the Membrane of the Tongue, which is thence carried up by the communion of Nerves, unto the Bafe of the Brain, and afterward through its feveral Proccfles, to the inward Fenroryr, where the common Sonic is feared, diltinguifliiug the various lirokes, Firli: made upon the outward Senlbry, and then imparted to theinward. But the manner of Senlation in Hearing may be \/ as I l‘m performed by various hounds, which are f0 many Collifionsapprehfndh of Air, briskly recoiling from lolid Bodies. And (asIconceiVe) thefe lounds being numerous Particles of configured Air, one part prefling another forward with great agility, may be fiyled Radix, which moving in flraight lines into the Auditory paillige, do make Appulfes upon the umpmm, as well Lrhough my Intendmcnt at this time is to Treat principally of the A Medulla Spinalir, as an elongation of the Medulla oblongata, to which it is near akin in Subfiance and Colour 5 yet it may not be amifs (as Methodical ) to fay fomewhat of the Chine, before we difcourfe the Medulla Sfimzli'r, of the Fifinlzz Sacra, before the FunitnlM argenemr, of the fine Cabinet, as ambulatory to the more excellent Jewel. ‘ The Chine may not be unfitly {'cyled, An elegant Columne (fupportm The defcrithe liately Frame of Mans Body) compofed of many parts, the Vertebers of ption orthc Chincthe Neck, Back, and Loins, as {0 many Joynts curioufly adapted, and )oyned to each other, and well wrought, as it were with excellent carved work, fet forth in the great variety 0 acute, oblique, and tranfverfe ProceflEs,as {0 many regular Carvings (wrought upon the body of the Vertebers) {0 that ' the oblique ptotubetancies do on each fide uniformly anfwer each other, and the afccnding and defcending ranks of tranfvetfe ProceITes, do Imutuala 1y correfpond in the fame order, and elegancy of Figure. This Spinal Columne is crowned above with a fair Chapital, beautificd with the fine Clobe of the Head, and fupported below with a double Pedeflal, as each is furnilhed with the 0: Femorir, (6v Crurir, whole Super-balEs are framed of the 0: llium,Coxendici.r, and P111213; and the inferior Bafes of this curious Pedefial, ultimately fupporting the pillar of the Chine, are the of: Tarfi, Mem- braced by the various Contrac‘tions of the oppofite minute Mufcles, inferred Wfi» and Digitarum. into italiy which it is rendred fiifi‘and tenfe, thereby difpofing it to receive turity, which I (hall endeavour to make out, in giving my mean Sentiments 9f the Hill Rife, Increment, and Perfection of it. As to the Firft, it .taeth its Conception from the more folid part of the feminal Matter, which being divided into divcrfe fmall Particles, is firfiindutated into many diflint‘l the diflereut impreflions of Sounds, being various models of Air, firikingUP‘ on the outward Surface of the Dizzpaizmn ; from whence the fame Configurations oF the outward Air, are imparted to the inward innate Air, whiChlS aCylinder made up of many Rat/ii, confined within the Dmpmmma and do move in a Pyramidal Figure, its Bafe being toward the fiflipdfl‘m'i and its Cone toward the Fem/ha Orwzlia, in whole minute pailage the RR- dtz oFthe innate Air, are contraéied , and thence conveyed along the Lab}: rmtlmr, to another {mall Mean", the Fencflra Rotunda, Where the (Rudd 0‘ tlieinnate configured Air, are again coiitraétcd to give the more brisk Al" Pulles, upon the tender Membrane of the Coo/m, conipofed of many Flbreh it'lmgmg horn the Seventh Conjugation , commonly flyled the ARIditon chCS, The Chine in its Fitf'c produé'tion is very much diflbrent from that ofMa- membranous Joynts, as the more tough draughts of the Vertebres, which appear in the Second and Third Month; and then theft: membranous At"t'iculaiions being more confolidated, grow in the Fourth Month CartilagiKious, Which being impregnated with fome faline Particles, give the early de- mea‘ion of: hen fubfiance, firfi reprefentcd in finalhpornts, not ex- ceeding the heads of Needles; and afterward as the Cartilagmous Vertee": receive greater acccflions of faline Particles, they gain, more fohd P 1': Concrctions, TlK firfl rife ofth: Chine. |