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Show Book II. 0f twining". 83x Book ii. ,30f K'jpii‘fltifll. W . Lungs grow {oft and Link, as their In Expiration the lately difiended are disburdened of many round Concave Sinus and Tubes of the firomhz‘a brought from acute Pubs, the of recoyling the by made Air by a comprefiion from the Midrifl‘ forced upward by the contraéted to obtiife Angles, and hrowing , into the bofom the szcerzz of the lowefi Story . t Abdominal Mufcles, lefiened, and the ls Thorax the of of the Diaphragm, whereby the Perimeter the unprofitable with Air, of reliques Edam the expell to d comprcfib Lungs fieams of the Blood. Having Mechanically defcribcd the motion of the Ribs, Sternon, and Midrifl‘, as infiruments or Refpirarion, the great difficulty rentainetlnwhich e of Air, and f doth highly pcrplex us, how the Lungs, the curious Machin and great Organ of Breathing do move, which is mofi worthy our remark . . deep inquiry. no Internal prinThe Lungs being a fine Compage of various par-ts, have Fi. ciple of Motion, as not being fiirnifhed with any Mulcles or Mulcular byes, which are the machines configned by Nature to the produéiion of L0- Thr lungsare tltrlnutc of l-ltlhy Fibres. Ti ~' Syfiolc anti Diaflole of the Lungs do I or kc», p time uiih the i'ulrariim t f the Ika, r. cal motion; neither'are the Lungs faftned to any neighbouring Muicles, as ether the Intercof'tal, and Diaphragm, the one moving the Ribs, and the the to reception give to T/Jomx, the of ence circumfer the enlarge to felt, it . Lungs, greater bulk of the expanded Fibres VVhereupon this noble Mcchanrlin liavmg no Mufcles, not Henry Ex. lome from motion its h borrowet them) ( which hold lbme analogy with rare ternal Principle, from the Fluid and claliick parts of Air, expanding the and tcnfive Compage of the Lungs, as compofed of membranous Cylinders ' and Orbicular Tunicles. The different parts of Breathing produce lnfpiration, making the Dialiolc of the Lungs, carried by theinflarion oFAir, and the Syftole, acted p by the contraétion of the Lungs, ejefting Air out of its Concave PieCeptacles. Thele diflcrent repeated motions of the Lungs do not keep time with the Diafiole and Syfiole of the Heart, but have diflerent paufes and intervals of motion, as the dilatation and contraf‘tion of the Lungs, are acted with more "owners, quickneis, or magnitude, as fubieét to the diéiates of the Under- cflicicnt caul'c of Rtlpil'a‘ lion. ration, we may eafily experiment in our (elves, that the Air is immitted Eifitfflnin"? through the Mouth into the greater and leis Cylinders of the Broucbz‘u, and ‘mPimigsnl-n their Orbicular Appendages, whereupon the whole Compage of the Lungs is blown up like a Bladder , or like Bellows, whofe concave Leathers a": dilated by Air, much refembling the expanfion of the Lungs in lnfpiraticm; This maybe made manifefi: to our Eye after the Difieéiion of one or more Intercoiial‘Mufcles, wherein part of the Thorax being opened, a Lobe of the Lungs may be handled, and found hard and tenfe, as difiended with numerous particles of Air infinuated into the greater and lefs Pipes of the Lungs. And alfo in a fleaed Animal alive, we may view how much the Thcl'crimc- Perimeter of the Breaft is enlarged in breadth by the Ribs, ( brought from izcriaiiilshéobtufe to right Angles, effected by the contracted lntercoiial Mufcies,) Fer-gal" and much in length, when the Midrifi' is drawn by its Flcfhy Fibres from Pl 1 I an Arch, to a circular Plain. p Learned BoreIIu/J giveth an account mechaniCally in his fecond Book dc BarrfluhisEXt Mom finimglz‘um: p. [63. how much the circumference of the Breaii: is $33525," enlarged in Infpirarion, by taking a 01an Cylinder of Fifty Foot long, and EM?" the Diameter of its Bore \Vas fomewhat greater than the fourth partof a "iii‘qli‘fis‘ Fingers breadth 5 whereupon part of its Cavity might be filled with a Fluid, Mam". containing fourteen Cubick Digits 5 after the Orifice of the Cylinder being put into a Saucer full of Soap Suds, and took a little part of the clalnm Liquorinto the bafe of the Cylinder, fomewhat refembling the Cylindrick bottom of the Breaf'r covered with the MidrifF; and afterward his Noflrils being flopped, and the upper Orifice of the Cylinder being applied to his Mouth, he fucked out of its Cavity fucli a proportion of Air, as his Lunas did ufually receive in one gentle Infpirarion, in the interim the warty liqugr did not afcend to his Lips 3 whence it may be inferred, That the quantity of Air received at one breath into the Pipes of the Lungs, was not equivalent to Fourteen Cubick Digits, by reafon fome part of the cavity of the Cylin- fiant uninterrupted Pullations, when the Lungs for ionic time do fupprch partly With Water received lately into the bafe of the Cylinder. as comparingthe pullations of the Artery ( obferved by a touch of his Fin- The Matter . _ Air. If we make an Infpeé‘tioninto the motion of the parts exercifed in Refpi- The Airisim. flanding, and commands of the Will, to which the meerly natural motions of the Heart are in no manner liable, by reafon the Heart maketh its contheir feveral motions in obedience to the commands of the Will. Again, many l'ullhtions are celebrated in the Heart, while the Lungs have but one Diaiiolc and Syliole, as any may eafily experience in himfelf, and exttrnal fiagnant Waters 5 or ill Minerals of the Earth, it will producg Ed} at diffi_ culty of Breathing, and afrerWards Sufi‘ocation, or at leah‘. a lofs of Breath, found upon the expiration of Animals, long living in grois or corrupt ger in his Arm) with the Diafioie and Syfiole of the Lungs, the expanfion and contraéiion of them made in Infpiration and Expiration, b)' the immiflion and emiliion of Air into and from the Bronchia and Simuo the Lungs. Farthermore, the matter and external eflicient caufe of Refpiration in terrt-iirialand flying Animals, are the elafiick particles of Air, and cannot ht the more grols fluid parts of Water, which being immitted into the Brourbiu ,t of the Lungs, will immediately confound the different motions of Re- ‘ fpirarion, and produce Suli'ocation, which is very confpicuous in drownf Animals. And it is alfo requifite in Air, that it [hould have a moderate confifience, by reafon if it be too thick, as mingled with grols Vapours, coming Out 0 fiagngflfi det, Containing the {aid Digits, was filled partly with remainent Air, and And to give you a more full Hiflory of this Experiment, I will make bold to trouble you with the Renowned Author's own words, leafl: I fltould do him form? preiudice in the Tranflation. flit ills, Quanta were fit ampliatio {hm-ac" fizéia a!) aeri: iufpiratione haberi pate/1‘ hoe artificio; Sumpfi Fiflulam vitream Qlindrimm, cujm‘ longitude t 2 Digit" xquabrzt, (r biz/Er, fen twitch? diameter quadratic digili uniur paula major emf. Qimre rapacitm ry'ur repleri Pm"! a‘ flnida 14.. ngitorum Cubicorum; pqflea immeifo Orificia fifiulx infra fcutellam Sapouir [omra repletam, :xcepi exiguum aqua: «xi/cider: portiunculam , qua? replebat infimam bdfimfiflulg ad infiar Diaphragmatir. Naribu: deinde confirzélir, applicato ort- exuxi ex witreafi/Zula Mutant ml": urir, quantum nuim [em Infpiration: @ulmimer exriperefolenta @ tum: aquea i114 gutta elm/am, ad 0: mm perryenit. Him deduxi quad mater aerir d me qupimti I 4. 7313110: Culzim‘ mm wquabu! ; fed fupponamur fulfil-e quiudecem pig/lea, quia mei tboracir ampli'udos fen Diameter 1 5 Digitar mm aquat, erit proxima mole: Spbxraidalir tomP'ffla mei tbaraci: flqlmliJ‘ 3375 Digiti: Cubicir, quare 120/1 Iuflziratiouem additi: D to 15 aliir |