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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 806933011:0685
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connectins che Poines oP Incersection oC chese Radii ), DVADRAYORE OEche Par 2bO(2. SeC Para
and Parallels, ic will be chac Line vrtrich is called bolicte Space.
the Duadrabrix (aSD F) From this Genelis oF the
Ouadratrix arise chiele Corollaries.
GOADRATORES oE itie Moon, ac itie Mid-
dle Poinrs of her Orbir, betweenthe Points oF C On
F. Thar il chroush any Poine, a5 H in ehis Oua- Because L Line drann srom rhe Larch ro ihie MoOn
dratrix, rou dra a Radius A FLI, and the tvo is chen at Ristic Angles, wich one draun fromthe
Perpendiculars TTh and FTe, it ill bc, as chertiole Parchtoche Sun. When the Moon havins been cither
Ouadrancal Ark DB, is ro the Parr IB :: (0 Wvill
in Conjuction wicti che Sun, ac C, or in Opposirion to
he whole rist Linc D A be ro che PaE OF ic cur (tim acO, is corie 10. Thenmeis incie Oua
hA, or its equal H en ad is plain trom consider- draures.
ins che equal morion oF che Radius A D, and the
side oF the Square DC, Which interseet each ortier
in II.
2. WHeretore any Ark OE the Ouadrant a5 L B.
Ox any Anele aSI AB, may by chis Ouadrarrix be
casily divided into 3 equal Parrs, or any other NTum-
ber at pleature, or accordins 10 any siven Ratio, by
onty drawins the Radius AI, and chen trom the
Point of the Ouadrarrix FI Letrins Fall the Perpen-
dicular HI c: FOr it IIe be divided into 3 Or any
siren Number oF equal Parrs, Lines dravn
trom A che Cenere chrousli chole Diritions, Mali
divide che Ark or Ansle attex che lame manner.
For a5 the parrs OFILC, are to the whole Line:
(0 Will che parrs oF che Ark IB be co itic whole
ArK: By ehic Former Corollary,
3. TCaY, That ehe Base os ihe Ouadratrix A F, is
a Third Proportional to the Radius AD, and the Oua-
drant BD.
For DB: D A:: TB: FTC, as SolloS (alter-
nately) Trom Cor. 1.
And Lb: FL c:: B A: e A, (Y che Friangles Be-
ins Similar.)
Nou il rou conceire rhe Ark LB 10 SroU in-
nicely (maII, ic must at last come to che lame as its
ristu Sine Ib, ind boch vill coincide in rhe Point
B; and at itie laime time a5 HI P and FI cCO-
incide inthe Poine F, (by che GeneHs OEthC C urvC;)
(0 chac at laH A c and AB, A b aud A B vis bc
passes tranlverr ic au eguat vCac ae CIMCR-
coincident: Andtheretore at laADB. D A:: IB ies 10 is parels Aelhr, and parely Tendinous In.
(1. c. IB) FTc. That is, 25 AB. A c. Or wrhich is
the Came ac last, as A B fOr AD) IO AF.
Wheretore DB. D A:: D A. AF. 8. F. D.
4. WWheretore il on the Base oF the Ouadratrix
AF, a Guadrantal Ark be described, ic will DC
equal in lenschro D A che Side oFthe Square: And
conlequeney che Semicircle will be double, and
che Peripherr Ourdruple, oFD A.
5. Flence may a Rixhe Line De Found equal to alcenamls under the Stin of the Neck, becOmeS
DB or any orter Mmadrant ot a Circle, by only
makcinu a5 AF AD:: A D EO 2 Third PFOPOF
tional, wrhich will be equal eo rhe Duadrantat Ark,
by COr. 3.
6. ACtex the lame manner may a Righe Line beMou rogether with the Checks, which Posture
Found equal ro L B Or any orhex AFK oF a Circle le(S
chan2 Onadrane, iF ic be made aS D A. TI C::
DB. DB10 a Coureh Proporcional BY Cor. Y.
Trisection ot an Anple mighe Geomerrically be et
sected, it ehis Ouadratrix Wvere. a truc Ccometrica
riets is rhe Findins a Square equal roche Area ot  or Deceen thelast Rib and Spine oE the O5 Ilium
IL. Sec Lunes.
junction and Opposition: Aud cher are (0 cabled,
mmum
OVADRALOSmoris, 2 Muscle OFche Thigti
(0 called trom ies Figure; it ariseth broad anc
Aectr, From the spophysis oE the Os Ischium, and
DVADRATORE OF any Fioure in Mathema-
Terrion arche Posterior part oF the Os Femoris, pari.
ly belour the great Prochanter. This ANists che
Marsupialis, in turmins che Thish bone ouE
Wvards.
OSADRATOS Gena, Seu Tetragonus, is a grea
Square Muscle lyins under che Skin oF the Neck.
anet ls Spread over the Wwhole inferior Region oF the
Face. Ir ariles chin and membranous, trom the
Spines oE cheVercebrae, the Stin on the SupCrIOE PAFE
ot che Cucullaris, and PectoralMuscle, trom hence
Aethy, and one part adherins torhe Os Hyoides, is
Coon inlelled ro. The Midale oF the lorver Taur; the
ortier broader porrion proccedins Farther ro irs Im.
plantarion in the Cheeks belo che Ansle oF che
Lips: Ir serres ro drann donn each Ansle oE the
OF thC LaCC IS FHC PFOPEF ExPFCTION OF SOFTOW
But it the inferior Parrs oF these Muscles (Which
lic on the Neck) Aet alone, ther distend che su-
perincumbene Skin, by makins ic approach to a
dircet Line ich the Claviculae and lorver saw-bone
wwtich ocherrrise is Indented accordins ro the FOr-
mation oEthe Parr, Whereby a double Strin (25 chey
CalLIr) is represented
OVADRATOS Lumborum, is a Moer chict,
Resty Muscle, siruated in the Region oF the LOins,
ic aciserh trom che pollerior Parc ot che spine os che
9. SO ThaEThC OMadERTUTC OF the CMCK, ale che
Curre, as indecd ir Is HOE.