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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 806933011:0323
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EXTRAV
empes void Space, which is by so ula to
D Cxcea berond the Bounis ot ee Cniresse
atd Comeslen in whiich chere o Leaus t
EXTRAVASATED, in Anacomy, is whalerer
is pur ot ter Forrh out OE che Vessels, a5 Bloc OU
ot che Veins or Arreries, into che Cavules t lale
EX LREME and Mean Proportion, in Geome.
ery, i5 Wwhen a Line is s0 dirided, chac the lstore
Line is 1b che Grearer Segmene, a5 har Sitm
Ot, 25 Euclid expresses ic, when ris (0 dirided
charche Rectanele under che whole Line, aill the
AF Space, is the Intinire ot us sat, and extract aS neaF aS VOU Can, IHC
lesser Segmen alan De lesaut le che square ot t
Elatet deD d El dus Eate tt doaa E. ob dbo
Aa B) adanE : all on cach side, eo matie X
ax   a an a compleaC SGuaVC.
The Equarion will scand chus:
= a 4 = X X I- X a  = a a-
Non since che larrer is exactiy a Square; il
RODEX -] = a = V = a a, and by Transpositior
it wili be V = a a = = a = x; which las Fqu2
tion is a Cannon 1o find X
For at the FOOT OF A B = a, Ser at RighE: angles
EB = = a: Then draW C A, the Square o
irtich is equat A B g ] - C B 9 = = a a. AnC
theretOre A C = V a a a; make C D = C A.
Square Roor ot ihe sum; trom wrhence catine
halt che whole Number, rhe Remainderis che erea-
TCF PATE.
EXTOBERANCES, are Svellines Forct, 0
Risines up in che Fles Or ortier Parrs ot che
Body
EXOLOPRATION, is a Solurion of continui-
er, proccedins trom lome gnamine Macrer, arid in
Pot Parrs oE the Body is accended with a loss oE
cheir Ouanciti; ic ditters trom an Abscesse in chis,
chacan Abscesse commonty Follons a Crisis.
FiXOVIA, these StelIS, and orter Marine B0-
dies, which are found every where in the Borvels
ot che Farih, and wrhrich evere certainty lete chere
ac che niversal Deluge, becaule they are nov
Proved by Dr. Woodmard and ortiers, 1o be the Reat
Spoils oF once living Animals, and nOL StOnCS, OK
Natural FOsiIs, he very propexly calls che Lruviae
Ot Animals.
EYE, is the wondertul Organ OF Sight: The
Fyes are placed in cuo larse Cavities, Whichchey
call Orbitae hollowed out ot the BOnes OF thc SCuII
on cach side of the Nolez Which Orbirae are invested
on their Inside rich cheir Perieranium, and eo id
che Feet and Origines ot the Muscles adhere frmly
Thele are the srst containins part ot rhe Rye; rhe
nexcare che Palpebrae, Or Fye lids; Which sec un
dexPalpebrae.
ThC Fye hath Four Tunicles, oF which one is
called Common, and che orher chree Prover.
TheCommon Tunicle is called Adnara, and the
Sprines trom the Pericranium, and is spread over
al che Wrhire of che Fye, abore the Sclerotica
reachins 25 fara5che tris. Bychis the Rye is Kepr
srmly Wwichin iis Orbic, From whence ie is alto
called conjunctiva. Ir is oF very exquisire Sence
and has many Capillary Veins and Arreries creep.
ins chrouxh ic, wtich are most conspicuous in an
Ophchalmy, ex Instammation of the Lyes. On
derthis Funicle are the Tendons ot the Muscles ex
tended and expanded ro che Circumterence ot the
Tris, utrich increales irs Whirenels; and some take
ehem for a second Tunicle, callins it innomi-
nata.
The Proper Furricles ot the Eye are chrec, ac
Cordinq EO LMIL CMICCIOTA SMIBTLAMCC OL IIC SPIICK-
Nerre. Forthis Nerre (a5 all the other) contilS
ot rvo Tunicles springing From the Dura and Pia
Mater, and an inner Marroriy Substance.
From che Dura Mater Springechche urmost C O2r
OF che Nerre; and Trom this thie Funicle char is
spread nexe under the Adnata, called Sclerotica
Erom ies hardness; BuE in IES FOreparE Where IE CO-
rereth che Tris and Pupilla, it iS nared Cornea-
rom ies cranspareney, cho Lomerimes this larrer
Name includes che whole Funicle, 25 vell behind
and on che Sides, a5 before.
Thac which liethnexe ander the Cornea, in much
From whence C B = = a, beins taken a5 che chinner chan ic, and is called Choroides, from ils re
Case requires, chere remains B D = x; Which semblins ehie Membrane Chorion, Whercin chefae
transter into AB, it MaII find che Poine B, where tus is included in che omb. Ies Forepart is other-
A B is eur acCOrdinS 1O Futreme and Mean PrOpOr.
tion.
The Syncherical Demonstration whoreos, Fuclid sive.
in the TY. C 20
This cannoc be done exactir in ans Numbers;
bur il vou wonid hare it colerably near, add toge-
hres chie dgnace et aus dumbet, and ihie dquare
Lu et aelade. Llo BCOMCHE Lia MB.
ter, aet is spCact ens ene Boltom, or Cenite o
the Fye Behind, aIl over che Fye ro che Puxilla
conhole Circumterence when it is corme, it be
comes double, matins wich one pare che tris, wirtu
che oihec ihe Lisameneum ciliare.
at 21I.
BodY, (9C.
eo che Orter.
Greater SeBtment.
The Inrention whereot is a5 FolloWs.
Lec che siren Line bc A B = a and FOF II
Then by che Hyporhelio,
a ib .  e ib.
ee  L a un cenquenty a
ise caucu um decaue leslomentiarche Co