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# Title: Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences (shelfmarks Leibn. Marg. 71; ZEN Leibn. Marg. 71)
# Folio - , page id 806933011:0273
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Si AR. This Cutious Instrument oF Flearins, i
divided inco che External, and Internat F. at
THC
EAR External, is compoled oE a Cartilape co.
vered wich a Skin verr delicare, under Which vor
meer with anocher Nervous Tegument thatimme
diately embraces the whole Cartilage; Wrtich, aF-
tex lome fer Folds terminates in rhar parr ot the
Fas which is called, the Concha, trom ies relem.
blance co che Enrrance oF 2 smalI Shell: Besides
thele, ic hach ervo Mulcles;
The Erst is made ux ol cerrain Carneous Fibres
AXE t0 thac part OFthe Pericranium, thaccovers the
Musculous crotaphytes, and descends in a Araie
Lincco insere ic sel( ac che upper pare of che second
Foldine oF che Par.
The second likewise consists ot Are Ox six Carrie-
ous Fibres, chac ralce cheir rise trom che upper arid
Foremost part oF che Apophyses Mastoides, arid de
scendins obliquely for abour an Ineh cerminate at
che midale oF The Concha.
Artertes it hach trom che Carorides, one Branch
ot wohich passerh behind, and che ortier betore
and che distriburion ot rhese is accended by Veiris
Trom the Lxternal Fucular.
The FTole OF The Far, is a Jube reachins From
the Concha eo the Tympanum, and consists parrly ot
a Cartilase, and parilr of a Bone, the Stin char
corers ic is furnished wich an infinire Number ot
Glandules oF d sentoiin Colour, each of which
hath ies Tube openins into the Carier oF the Par,
and sendins Torth thac vellon gleuy substance,
wtrich is commontz found chere: AL the end ot
ehis Passase i5 seated che Membrane, called the
Timpanum, er Drum, beins almost round, dey
thin, and cransparene, and is inchased in a Chan-
nel cur usthe Bone ac the endot che Tube.
Alter this Membrane succeeds a Caviry callec
the Barrel, From che likcehels ir has to che Barret ot
a Drum, beins on che Sides encompassed by che
Bone, cloled betore by char Membrane, and bc.
hind by the Surtace ot the Os Petrosum. This Bar.
rel contains in it, o Channels, UWO Apertures
tour Bones, chree Museles, and one Branch ot rhe
NervC.
The Channet thac goes Hom the Far tO che PA
late, is called che Aqueduct.
The Apertures, or Windots, ate sicuaced in che
Supertcles oE che Os Perrosum, Opposite ro the Tym.
panum: che tishest is che Oral- indo, in che
Theruo Windons open into a Cariry whichis
hevn in che Os Perrosum, called the Labyrinth, di-
vided likewise into chree ParS. viz. ThC Fntry o)
the Labyrinth, the chree Semi-circular Canals, and
The Conchas
The Fnter oE ihe Labyrinth, is Bruared behind
the OraL. Windou, and hath nine ApertureS, viZ
The Oval one, and Righe one, the Arst OF Which
leads into the UpPeE parF OF che Conchâ, Are be
lons ro thie Semi circular Canals, and the rvo last
transmir cuvo Branches of che sotcer Porrions of che
Auditory Nerde, XC.
THe Fxternal Far Collects the Sounds, and aug-
ments the Impression by che rarious ReRections che
Voice undersoes in iIs Pastase chro che Folds
ThCD) sC OF itie Nuseles is thoughE tO ContraCt,
Ox dilace rtie Concha, 25 The TremblinOS OF FhC AIF
arc AFONS OP Weak.
In the Internat Far, the Tympanum is Arerehed
and made Aack asain, by the Mulcles oF che Mal.
leus; in rhe rension of it, Borh Mulcles act, but in
ehe relaxation, only che external, whose Action il
is to reduce ic trom a Concare ro2 Plain, 25 is ma-
nifest from the Insertion ot che Nuscles; che de
termination of wrhich Action procecds From the va-
rious Dispositions, and appusse ot the Objects, as
a Marp Noce, is caused by a Body wvhose Parts
are (0 disposed as io be capable ot very quick Vi-
brations, Whieh cher as Cuddenly imipress on che
Air; on theconrrarr, che Aac Nore proceeds From
the NOveF ScrOaKS OF a BodY, with ParES ThaL Can
only be (0 agirared, to Which differences the Tym-
panum readili complies, and does as it vere pur
on cheir particular Character; chis is. delivered
thence co The Malleus, and (0 Forward; rill at last
che lame Auctuarion is caused in che, Os Petrosum,
and in che Labyrinch.
The Aquiduct serres chieAy For che Tnorels and
Foress oF Air, r0 and from che Carier into which
ic openS.
From che Communication oF che harcer Porrion
ot the Audirory Nerre, wich che Branches oF the
Fisch Pair, Wrhichare distributed co the Organs ot
the Voice, proceeds thar Sympathr berwmeen Speak
ing and Flearing; Trom che communication OF 0-
ther Nerres, Follon the Morions oFthe Body, and
eren oF the Spirirs, which otien accompany che
Sounds We hear, 25 in the LHects oF Musick,
ec.
EARINC aboard a Strip, is that ParE OF ehie
BOIE.Rope, (or Rope Wherein che Sail is Leved)
irhich at che Four Corners oF the Sail is letr open
in the FOrm oF a Rins: The tvo uxpermost ot
Wtich Four Farings are put over the Yard- ArmSFO
Falcen the Sail co che Vard: Anid into the lorver
Farines che Tacks and Shears are seized; Or, 25
NIE. Reil in his FXamination OF DP. Burnet S Theory
makes 10 be 170981012 Tralian Miles, and ine
Tralian Mile is licele lels chan the Knglist one.
The Ambic oF che Farch (or the Cireuference
Ot d edC CHele ot I1) accordine 10 rhe French
Mealure s, 15 l L3249600 Pari Fee, Or 216491
cher call ir, are there bent unto theClem.
boromi ot inhich is a lmall lase Whercon the Ba
sis ot the Ineus rests; the octer, wtich is called
che Round Windo, haS a Mall Charinel, ir
irhich is set a verr fine, des, and diaphanous
Metorane, likte chat oF the Tympanum.
The srst oF the Bones is callee alleus, wohole
lengen is abour, ? oF an lnch, elle Diameter oE iES
Breadch, is one Third oF iEs LenoFH.
The sccond is che Incus, ite sensele ot wrhole
 sernid c0 che scapes bx cheMeciarion otrhe
Fourch Bore.
OF elie chrée Nuscles Wwhich are contained i
this Cavier, truo belone ro che Malleus, the chIra
ro che scapes: Lastly, The Branch oE che Herre
evtrich passes behind ihe Tympanum, has been ta-
Nen by Come Tor the Tendon ot elte Muscle oE che
Malleno, arel is a Branck or che hsch Edit.
FARTFI. The Surtace oF the Whole ParIH.
Egel so pticd.