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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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Magnus Geometra) Tound our to be producible in any
Cone, accordins to che Tour Ways oF curtins iC, 23
abore mentioned.
SFCTION, in Machematick, signities che cur.
rine ot one Plane b7 anocter, or 2 Solid b7 2
Plane.
righe Line, beins che Line suxpoled ro be dravon
on onc Plane by che section oE che ocher, Or bY iis
Enerance into it.
SECTION os a Buildins, in Archirecture, is
understood oF the Perhil or Delineation oF ilS
Fleighes and Depths raised on the Plane; as is the
Fabriek vere cur alunder to discorer che In-
side.
SECTHS non faciendis, is a WriE that lieS LOF Z
Noman, Who, For her DOver, OuGHIE NOL 1O Per
Form Suic OF COurr.
SECTOR, is an Incrumene made oL Wood,
Troer, Brals, (90. wirh a Toine, and sometimes a
piece to turn out co makie a erue square, wich
Lines of Sines, Tangents, Secants, lqual Parts
Rumbs, Polrgons, FTours, Laritudes, Metals, 50-
lids. (0c. and is generally usesul in all the Practi-
cal Parrs oE che Machemaricks, and parricularis
contrired tor Navicarion, Surverine. Astronomy,
Dyalins. Projection of the Sphere, _C. BY Gunter
Foster, Collins, and ochers. There are litewile
Sectors tor Forcification and Cunnery, bY Sic Fones
Moor.
THC GrCAE AAVANEASC OF ihe Sector abave anr
Octet Rule or Plain-HCale, IS chat all iis Lines can be
accommodated ro any Radius; Which is done by
tatrino oH aII Dirinons Parallelvise, and noc
Censthrile. The grouor lhich Practice ischis,
Thac Parallels cothe Base ot any Plain Friangle.
bear the lame Proporrion to ic: : 25 che ParIS o
che LesS abore he Parallet do 10 rhe Wtiole
Le85.
SECTOR ot a Circle, is a mixt Trianele com.
pretiended becioeen che Radius and an Arh ot ih
Circle.
SFCDNDANIS, in MachemarickS, is an infnire
series oF Numbers, Deginnins From Norhins, and
PCC B ad  s et mdeis in AC
matleat Lededlliel
Ornext to the chief OFFiceF; 25 the Secondaries ob
the Fine ONice; the Secondaries oF the Comprers.
wrho is nexe to the Sherif ol London in cach of the
EVO COMPTeFS; Secondary oF the OHice OF the
Prirs.Scal; Sccondaries oF the Pipe EwO; Secon-
darys co che Remembraricers, Wotrich are tuo OF-
cers in the Exchequer.
SECDHIDIHK, che Secundine oF Ascer- Birrt
are the chree Membranes, Cborion, Mlanrois, and
amnion, wohiich vich che Placenta, are excludect
atter che Biert.
SECVRITATE pacis, iS a Wric chat lies FOF
one who is threarned Deach Or Danser, against
him ehac (0 chrearneth, and is caken out of ihe
Chancery, and directed rothe SheriH.
SECORITATEM inveniendi quod se non di-
vertat ad partes exteras sine licentia Regis, iS a WV rie
chac lies For the Ring asainst any ot his subjects,
to star them trom goins out ofhis Kingdom: The
eround of wwhich is, Thac erery Man is bound 10
serre and desend rhe Commonvealch, 25 che LinB
Mall chinte meet.
SE desendendo, is a Plea For him that is chareed
Wich ehe Dearh oF anorher, Cavins. Ile Wwas necel
Sicaced eo do chat which he did in his omn defence.
the orher (0 AMaulring him, Thac it he had noc
done as he did, he must have been in hazard of
his oun Lite: Buc chis Danger ousht 10 be 10
sreat, thar ic seems ineritable; and cho hejustite
ic ro be done in his own Octence, yet he is driven
to procure his Pardon ol course trom che Lord-
Chancellor, and Forteirs his Cioodsro the King.
SEDIMENTOM Trinae, the Cediment oF Vrine
are parts oF che nutricious suice, which beins sepa-
rared trom che Blood, withche serum, becaule oF
cheir Grarier, sink to the borom of the V
rine.
SFEL, a Sea Word much oF the lame Senle
With Heet; For as ther call it becline, when a Stix
lies donn constantly or Ateadily on one side; (0
ther cal ir seclins, Wvhen e tumbles on one side
violeney and suddenty, by realon ot the Sea forta-
king her, 25 ther call iC; i. e. che Waresleaving oF
her For a rime in aromlins Sc2: When a Ship thus
cumbles to Lec-mard, thes call ic Lecscet; and in
ehis chere is noc much danger, even in a Srorm, bc.
cause che sea ill presenely ristr her up again:
buE iF Me ROWIS OE ScelS eo Windmard, there is
tear ofher comins over r0o Morr or suddainly, and
(0 by harins che sea break righie into her, be ei
cher Foundred, or else hare some ot her upper
SFGMENVLos a Circle, 15 a tigure contama
becween a Chord and an Ark OE che Came Cir.
cle.
Fosind che Suxerticial COntenE OF any SeBMEnE
ot a Gircle, sec Area, N, 10.
a Plane; and theretore the Bale oF such a Sesment
must alvays be a Circle, and irs Supersicies a patE
ot cheSurtace oF che Sphere.
A5 Cor tntcancen
32, 4. d. 2 s 5b 4h c .
SECOHDARZ; Char Oficer wtoische lecond
Wocks carried avas.
SEGMLEHF os a, Shere, IS A paTE OF it CuE OA by
The common section OF WWo Plares is alvv ayS 2
The Sector abc, made by LHC L. CB5 a b and a c
and ehe APk b c
To sind chè superticial Concene ot any sector.
sec Area, N. 9
SFCONDA Superoneratione pasturae, i5 2 Writ
ehar lies Where Admeaturement ot Pasture harh
been made, and he rhar srst Surcharge d the Com-
non, doct abalt lueato  lanid etie
remreatureet