HEA 
‘brill of the auditory nerve, and communicated ites 
to the fenfory, the mind eaae and gets the idea of 
founds. 
The moderns fpeak of the point on much better ground. : 
_. The ear, and the feveral parts thereof, membranes, -ca- 
nals, labyrinths, nerves, &c. are the only means and ve- 
hicles for ahs reception, modification, and tranf{miffion of 
the fonorous matter to the brain, which is the feat of the 
fenfe. 
eats upon ‘the membrana tympani, which moves the little 
‘ones in the tympanum. For a oe of the bones 
of “ee organ of ae fee CRANIUM 
in 
that, penta, te to the various refractions of the external 
air, the poser air makes various impreffions upon the au- 
ditory nerve, the immediate’ organ of = which dif- 
“Sir the Newton carries the thing fomewhat farther, 
fuppofes hearing, like feeing, to be performed not itimédi- 
ately by the vibrations of the ear, but by thofe of fome other 
more fubtile medium, excited in the auditory nerves by the 
-tremors of the air, and propagated pied ts the folid za ol 
laments of the nerve to the ay of fenfa 
The curious ftruéture of the $s riiath and cochlea tend 
to make the weakeft founds audible ; for the whole organ of 
ona sey i oie all p hee it; a the ftrength of 
the imt bei cateri the 
‘of parts on eich che imprettion is Syst founds which are 
now low could not have been heard at all. If the auditory 
nerve had, like the retina, been expanded, into a large web, 
which had covered or lined fome wide cavity, the impreffion acqu 
er than 
f founds, even in this cafe, had been much they 
are now; for this large cavity had given roofs the 
— to dilate, and all founds grow weaker as ey di. 
: Both thefe inconveniences are prevented bys the eek 
ftru€ture of the labyrinth and cochlea, whofe canals, by 
their ° winding, wwii large portions of the auditory 
‘Merve, upon a point of which the fmalleft ad being: 
_ at once impreffed ‘becomes audible, and by their narrow- 
~nefs the sfounds are hindered from eseuamase ; and the im- fuch 
dilatations 
es ay the nerves by the fi are 
always the ftron ae 
The 
get. 
he ftrength of the impreffion in narrow channels is and 
liftewife inereafed on account of the elatticity ~ ie salen j 
-of the’ canal, which, receiving the firit and 
impulfes the —— do reverberate m 
Tt" map" be ablereed » that thou h the air be the ufuat 
matter of founds, fo that a bell t 
: : in Ss 
heard at all, yet will moft other  badies, erly dite | 
tage Be Bs on ‘aly f prcpey 
The ma a found 1 he heard throu h water, or even. 
os si ii Ahan oN a a pag acca 
Aiton th arb th ey ego arg yet 
tals 
m more eae upon ° 
fou 
HEA 
Hager rt :: ene phyfician, maintains that on 
with the t Thus, if one end of ‘a kn ife, ey 
be ‘asta . a s Rarlichord, and the other held between the 
—_ the mufic thereof will be plainly heard; though the 
8 be ever fo clofely flopped, But ‘this, perhaps, may 
more properly be referred to. the fenfe of feelitiv, 2<goey 
- = as want the fe enfe of hearing are faid to he deaf, See 
EAF 
fackinks Dif ificulty of. See Drarngss. 
Heanine is partic ularly ufed in civil and judicial con... 
_ cerns, for a caufe being pope 3 before the, ince: and j Po 4 
and the parties being heard as to the merits 
The method of hearing caufes in the court of Chane 
is this: the parties on both fides appearing by their om: 
fel, the plaintiffs bill is firft, opened or briefly abrid 
and the defendant’s anfwer alfo, y the junior saat a a 
each fide ; after which the plaintiffs leading counfel flates 
the cafe and the matters in iffue, and the points of equity 
arifing from them; and then fuch depofitions as are called 
for by the plaintiff are read by one of oe fix clerks ; 3 and 
p. 451. 4to. 
The bearing of ambafladors at the courts of princes, is 
ufually called audience. | 
HEARNE, Tuomas, in Biography, “was Be rn at, White- | 
Waltham, in Berkshire, in 1680, of which place his father was. 
parifh clerk. The early part of his education he boas 
under his father, but fhewing a difpofition for learning, 
was patronized by Francis Charney, efq. who undertoek fe 
charge of his education, and fent him,to Oxford. Here he 
i by Dr. 3 and Dr. Grabe as a fit perfon to collate 
the MSS. which they had Seaton es make ufe of. He 
took his degree of B. A.; refufed a curacy which was of- 
fered him, and — in tithe araiie fecond librarian of the Bod- 
leian library. To this 5g added fome other college offices, 
all which he refi he was called on to take the oaths — 
"ich be he felt obliged ae eee to refule. 
oa a ote ave r 
npetedy 
‘HEART, in Anatom 
