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# Title: Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences (shelfmarks Leibn. Marg. 71; ZEN Leibn. Marg. 71)
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Distance trom the Glals; il ther do, e may (becomins very rurgid, slls che Vesels chat run
De assured oF the Regularity oF che Glass, thac chroush che Brain, more rhan utual, and by di
is, oF ies just Form; Qnd ac chie tame time ve cendins chem, Rops che Pores ot ihe Brain;
obrain exactlr the Classs Focat LenstH.
BuE, attex all, there is nO Better Way FOF Fy
ing the Fixcellenes of an ObjoaGlass, than by
chele Verres also in cheir whole Course are com
Pressed by the Blood chac is become cursid sIL
cheir Blood- Vessels likemise.
Or. Ridley (ay5, Thac he has seen che Blood-
placins ic in a Tube, and reging ir wich small Vessele ro run noc onlr uxon or wichin chem
tiye-Classes, ac sereral distane Objects: For  buc also in injected Bodies exactiy quire chro
chac Object-Class thar represenis the Objectsche che medullars substance ot chem, into cheReri-
brichrest and most distince, and bears the greatest
cular Coac ot the Fye, Wherein they end in an
Aperture, and most Conrex and Concare Fye- intinice Number ot che most capillarr Ramitica.
Glals, Withour Colourins or Flaxinels, is surely rions, which, by an Injection et char Arrery.
the belt. The most convenient Object ro rry made wich Mercurr, becomes rers delishutully
ehem ac, is che Title Pase of a larse Book, Where conspicuous rothe FYc.
there are generally Lecers princed ot divers Mag-
Ther are very solr, s0 lons 25 chey are wichin
nicudes, and cheretore attords Varieer oF small the Stull; buc harins palsd che Os sphenoides
Objects; Whereby che Compararire Fxcellency
oF Object. Classes may be nicels estimared.
cher become Lomentrat more tum and harda
The Rcason ot irhich Alcerarion seems rO BC
chac wrichin che Stull cher are only clad wich che
Pia mater; bur 25 chey 50 ont, chey a umie a
OPTTCK Nerves, or che Nervi Visorii, are Second Conttrom che Dura mater.
ihe Second Pair, which belton on ihe Pres che
Faculey oF Seeing. Ther sprins From che up-
From che vhole Substance ot chese Nerres.
viz. trom cheir rvo Membranes and che inner
Der sides oF thole unequal Procuberances oF the medullar and tibrous Substance, are rhe chree
Crura OF the Medulla oblonsata, wtrich are called) (Proper) Punicles of che Fyes Framed; For che
Nervorum opticorum thalami; From whence be-
ins carried Formard, and somewtrat domnivards,
Cornea ex Sclerotica dorh proceed trom the Dura
mater, che Choroides, Or Dvea From che Pia ma-
atcer havins ferchd a Compals, ther meet one ter, and che Retina trom che marrovr Sub
anotter aboue the infundibulum, uxon the sella Cance.
oFthe Os sphenoides; Wherether arc uniced brthe
closest Conjunction, but nor Contusion, of chcir
OPTICK Piace Os a Siar or Planet, is rhat
PoinE OF Part oF iis Orbit wwtrich is determined
Fibres, irtrich run parallel lenschrays in these by our Sighe when che Scaris chere: And eliis is
Nerres, a5 they do in aIl orher.
cicher Fruc, wten che Obserrers Ere is luppo
They arc obscurels hollon until cher be uni- Sed ro be ar the Cenrre of the Farrh or Planer he
ted; bur alter, cheir Hollonnels cannor be dis- inhabis; or apparent, when his Ere is ac the
cerned. This FTollonness may be shewed in a Circumterence os che Farrh: And che Disse
large Beast newsr Killed, and in a clear Liphr.
rence bermeen chele rvo is che Parallax, whole
Thusdo Riolanus, Clisson, erc. reach; bur vesa- VIc is grear in dererminins che Distances ot rhc
lius, Aquapendente, ec. deny chat cher hare any Planers, (90
manner oF Carier. Malpishius Cays, ther have
noc one Carier ontr, bur sunder; buc chacthese
Caviries result ontr from the Necessier ot cheis
Scructure, alI cheir innex or medullaE parE CON-
sictins oF round Intestinula Or Fibres runnins
lenerhars, wrtrich cannor be (0 closely Acred r0
one anochet, but thac chere will retule lons In-
cerstices, wrtich ver perhaps are oF no ule, no
oF the Nature oF Ducts, bur ouly accidental:
but whecher the Intestinula, Ox Filaments them-
selres, have not se CManels  esem (like 10
Blood-ressels) he chintes mar be doubred of:
Bur secinq sese Math nor dilcoreted any suct,
tis probable thac there arc to be admitred only
tirrte Pores alset Merus in the Medullar Sub-
OR, (French) in Elexaldry, is
che Colour oE Gold; and chey
Cay wichourchis, or Argent chere
can be no good Armorr. In the
Coarsof. Nobles ris called T0-
paz, and in chose ot Sorereion
Princes, Sol. Tis represented
in Eneravins br small Points
or Pricks, chus.
ORB, is ontr a FTollon Sptiere.
ORBTCOLAR Bone, is onc oF chielicle BOneS
oF the inward FaF, 1y d by a Pender Ligamene
rothe sides oF ehie Stapes
ORBICOT ARIS, Or Constrincens, Or Oscula–
torius, 15 a Muscle chac draws boch Lips toge
stance, by means whereot che nouristiins and (cher: Tis called allo Sphincter Labiorum.
viritrin sucel ilas de propagaced. Llucer cheie
ORBICDLARIS Paspebrarum, is a thin
Onicion cher are separared again, and cach of Flesty Musele, Whose Fibres do Circularty en-
them rumins Farrher Forwards, passes chro an vironche Fre- lids, and are inserred ro chem, (like
FTole oF cheOs Cuneoforme, and is inserre d oblique- the Sphincter Labiorum) nor adherins ro any
Iy into ase Centre oF che Fye on ils sion sidé.
Bone, trom whence we may derive cheir Ori-
Dr. Willis Cars, chey receire nor ony nerrous sin, excepe che Superior parr oE che grear Bonc
Fibres from che Third Pair oF Nerres, bur also oF che Nose, by some rectoned the Fourrh Bone
Twvios oF Arreries From the fore Branches oF the of the Upper Tav: This Nuscle actins likethe
Carorides, Wtich run uxon ehem as Fax as the Sphincters oF aII ocher Parrs, constringes che
Basis ot the sive: Whence, he thintes, a a
TOn Ma) DeanSHu Ws, when a Man GTOWS
CCS aIEL BICHCHM LatInS OF CLMMMIS, IIL PIC.
senely feels a nocable LTearinels or Opprection a5
Ere- Lids.
ORBIS Magnus is che Orbit oF che Farchin
ies Annual Rerolurion round che Sun
This Copernicus, Dr. Cresory, and Pome Orhers
c vere abour his Fyes. FOr hem che Bl00d, will have 10 be buc a Poine in comparison of che
Distance