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Show 9.38 0f Hearing. Book III. Book III. Farthermore we may add this in oppofition to the Hypothef iS, in making this Membrane the prime feat of Hearing, by reafon inWard founds arenor formed folely by appull'es of Air ad extra 5 as modelled upon the Coat ofthe 'I'yiipanum, but framed allb by innate Air, configured within the Hmpgm' in the inward Penetrals of the Ear, fometimes refembling the noife of running Waters, orhettimes of a Drum, or ofhilling, and the like, proceedin from grols, or more thin vapors,which taking their rife from \K itliin the Head, and pafiing through the Meatm of the Skull, do add} the innate Air, Which is acted fometimcs with uniform, orhertimes with various, and a Third way with continued, or repeated Motions, which beating upon the auditory Nerves , derive their Birth from Vapours, ariling out of neighbou ring arts. P It feemeth alfo evident, that if the Ears be afléfled inwardly with Di. feafes, that the Bombm internm Aurium, is filenced by a vehemen t outward noife of the Membrane of the Umpaimm, which is effected ( asI conceive) by the faint inward motion of the innate Air, ccaling upon a new more vigorous motion fuper-induced, which quiereth, or at lealt confoundsy or obfcures the other by over-powring it. The innate undulating Air, at new Radii are formed in it, is conformed to the more lively configurations of the external Air; Firft imprinted upon the outlide of the Tunicle of the Tympanum , and then the infide being contraéi ed, the fame impreflions are madeuPon the innate Air, and afterwar d are tranlmitted to the Membrane (covering the Carla) interfperfed with many nervous Fibrils. C H A P. XIX. 0f the YDzfla/Zir of the Ear, zma' it: Caren He Ear is a rare Compage, made up of an outward Expanfion,endu~ ed with divers Flcxures, and a more inward paflage, and many little Bones, Mufcles, Membranes, Holes, and Meanders, befet With nervous Fibrils the immediate Organ of Hearing, which is difotdered with nreater and leis difaffeétions of the auditory Infiruments,.prodiié'tive of a icfl'ened or abolilhed Function, whigh is caufed either originally by fome set of the Brain, or b default 0 the Ear. . defA diminifhed, or lofi gearing may proceed either from a cold and'mmfi iriiirgiifiror difieniper of the Brain, or by the Origen oFthe Nerves, obfiruéted in the fixing? ambient parts of the Brain by fome gtoiis Humor, lodged near the extremities of the Fibrils, or by fome extravafated Blood or Recrements, comprehfing the beginning of the Nerves, liindring the current of the animal Liquor and Spirits, into the auditory Nerves, which happeneth inan Apopleity, and other {leepy Diliafcs, which are cured by bleeding, Purging, cephaliclt Julapcs, Powders, Pills, of which I intend to treat ofmore at large hereafa ter in the Therapeutirlgr belonging to the Difi'afes of the Brain. . . , The difal‘leétions of Hearing are derived alfo from defect of the Ear, ei- 32%;??in ther when the auditory paITage is onruéted by Recrements, or gtofs Hu- gégry par. mors, or by any Tumor, Abfcels, purulent Matter, (9%. hindting the free reception of Sounds into the inward recefl'es of the Ear ‘, whereupon they cannot make brisk appulfes upon the auditory Nerves, whence proceed- etha dulnefs of Hearing. . Th eof This Difeafc is often cured by inyeé‘tions of Canary Sack, and other clean- Maegan," ling Decociions of a healing nature; as alfo Fomentations may be applied angry-town": t0 the Ear, made of Centaury the leis, Marioram, Rue, Bays, and wrth‘the Howersof Chamr-emcl, Mclilot, Rofeinary, Lavender, Mace, and Cam; mon boiled in equal parts of Water, and White-Wine added in the en 01 the Decoétion, out of which may be made a Siifiilur, received bya Tunne into the entrance of the Bar, which is conducive to the cure of the lelrened or loft Hearing, as the warm vapors of the Decoé‘tion do penetrate lnttd) the inward parts of the Ear, and relieve the Tympammi, and its Mufclesand Nerves, befetting the Carlee. Infiead of a Fomentation may be immitte into the auditory palihge, hot Bread (prepared With Seeds of Caranay) nerY talien out of the Oven, and moifined With new Balme, madelwgm. After :1 Fomentation, Injection or Fume have been admitted, aflltt cd or‘On or Wooll may be put into the Ear, mixed With Civet,and 0111i lrtlips 0f the iUYCC 0f a rofied Onyon, or Oil of bitter‘Almonds, Rue, ott e ite. . ‘ Sometimes the hearing is impaired by relaxation of the Dmpziamm, pro- :[ficoglgfgglduct'd bv a cold and moill: difiemper; or when the Tympamtm 13 F101: ren~ 353:5;de dmd Tfi'ilfe, by reafon the outward and the inward Mulcle are To weakened, "mam that They cannot contract themfelves, and brace the Drum of the Eat, to give it reception to the appulfes of Sounds embodied With An. H i3 Other‘ |