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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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In rhecircleche
LCayS PM beins
25 betore) paral
sel to cach orher
and Normal to che
Diameter AC, Wc
have aI(O Z= =a
BHE Since thC EvO
luta oF ehe Circle i
contracted intoche
Center; the Radi
us MC Beine BisCa I H, 2 perpendicula
HF r0 che refected Ray MVF gires che PoinE
in the Caustick. The reflected MF is aISO equa
r0 = che Incidene B M perpecually; FOr MIC bC
ing =r, and P M=y, We have trom the simitar
Friangles MPC, MFIT,
: Z =
Firom hence ris clear, char che Caustick cerminate
at thePoine _C, bissectins che Radius C B ac Rigt
Ansles r0 AC. Again, ehie Porrion ot rhe C’au
stick AF = 3 MF, becaule AF P M + MF
y = 2==-y f 5y. Bur chele hines ot Lixamples
may sustice, wichour descendine ro thole ot orter
Curres, Which are ro be done atter che lame man.
ner trom the general Theorems that chese vere
and che Constructions likemise to be deduced.
Fuvould be no disficule marrer eo sem allo Wwhar
Curves chele Causticks are in every Fxample: A
in che las case oF the Cirele, chac the C austick is
Cycloid Termed by che Rerolurion oF the Circle
described uxon the Diameter FYML alons chc
Oaadrane delcribed with the Radius C PT. THaL
ehie Caustick oF che vulsar Semi exeloid when che
Rays are parallel ro che AX oF ir, is allo a vulsar
Cycloid described by che Rerolurion of a Circle
apon che same Base. Thac ehe Caustick ot a L0
Barichmick Spiral, is che same Curve, bur onty
ser in a disterent Pohtion; and che likre in orhers.
CATACHRBSIS, is a Prope in Rherorick, b1
wtrich Liberer is siven eo borron che Name ot
chins, chough quice concrary ro whac ie ould be
becaule it cannor be orhermise expressd; aswher
ve lay a Silver Ink horn; here Realon demurs a
ehie xpression; Ver Necessuy obliges us ro make
usc oF it.
CATACLTDA, is ihe Rib called che Subcla
vian.
CATACOOSTTCKS, Or Cataphonicks, is cho
Science ot Rerected Sounds, or Which reaches che
Doctrine and Properties oF Fchoes.
CATADIOPTRICAL. Telescove, or Restectin
Telescope: Sec Felescope.
CATAGMA, is a breakeins oF BOreS, Or 2 Se
pararion of che Continuum in the hard parrs of rtie
Body; which is effected wich some hard Inctru
inene forcibly imprested uxon che pare; whole
Differences are raten from che Form, che PaFE
and several Accidents. Blanchard.
CATAOMATICK Medioines, are CuCh aS ar
esed to help e0 Conlolidare Broken BOnes.
CATALEPSIS, Or Carochus, is a Dilease almos
like an Apoplexy, beins an Abolicion ot aII ehc
Animal Functions; excepe that che Respiration
remains entire, and che Parient preserves che Pame
Fhabic oF Body thac be had betore hie Fell sicke
achard.
CATALLIS Reddendis, is a Wric wtich liert
Where C00ds beins delivered by any Man 10 licep
uneo a cerrain Day, and be noc uxon demand de
livered at a Day; and is ocherwile called, a Wric
of detinue.
CATAPASMA, a Fracrant Porder wtich is
Cometimes applied to the Scrobiculus Cordis, 10
Strenothen ehe Scomach.
CATAPIIORA, is che lame wich Coma; chey
ouly dister in chis, chac Caraphora is caken as the
Cenus co all Porrs of Scuxors chac are noc acrend-
ded wirh a Fever. Blanchard.
CATAPLASM, is a copicat Nledicine oF chie
consistence ot a Pulrile; ir. is ulually preseribed
eivo ays, cirher boiled, or wichour ic; che For
mer is more frequent, the larrer ot more etficacy:
In the former, chey are r0 cakce such Vegerables
25 dre proper, a5 Roors, Herbs, Scedsus Florvers
Fruirs, Gc. addins proper Meals, Or omicrine
them; all which are boiled up in 2 convenient
quancies ot Liguor, 0. r. Wacer, Beer, Milk
Hloner, 690. ro the consiltence ot a Pulrise: Thc
larrer is prepared commonly ot Vegerables Mrec
snall wich rhe intusion oE so much Liquor only 25
may make ic oltheformer Contittence. Tou may
add here Meal, Crumbs ot Bread, OyIS, Dinc-
menis, as in cheformer lorr ot Cataplasins. Blan-
chard.
CATAPTOSIS, is one symproine oc an Fixi
lepsie, utien Men fall suddentys 1o che Cround.
Blanchard.
CATARACF, aDisease inthe Eges, and is rvo-
Fold, cither beginnins, a5 a Suffusion only, or con-
Airmed, as a Cararact proverly (0 called; che incipi-
ent isbur a Suftulion of che lye when. licrle C louds.
Noces, and Flies Scemro Ay betoreche Rres; Dur
che contirmed Cararact, is when che Pupil Ot che
Eye is cirher wrtiolly or in part corered, and MuE
up wich a licele chin Skin; I0 chat the Sun- beaMS
have noc due admirrance ro the LyC. Blanchard.
CATARACL, is a Precipice in ehe Channel OE
12 River, caused by ROckS, Or ocher Obstacles
Roppine the Course oF its Stream, From Whence
che Wacer falls wich a grear noise and imperuoli-
cy; a5 he Cataracts oE Nile, Danube, Rbine, Eic.
CATARRHOS, is a Detuxion ot Llumoure
trom ehe Fead romards che Parrs under ii, 25 the
NTostrils, Mouch, Lunos, C9c. Some distinguisti ic
by che Name OE LoryZa, voben ic Falls on ilic NO.
Arils. Dy chac ol Bronchus wrtien on che JaWs; and
by che vord Rhume, When ic falIS on ihe Breast.
CATCHES, are chole pares oF a Clock chaE
hold br hookins and carchins hold ot
CATEGORIA and Z che lame vict Praedica-
CATEGDREMA Smentum in Losick: Sec
Praedicament.
CATENARTA, is che Curre Line Which 
Rope hanging Freely Berveen cro Points OF SuI
pension Forms ic selE into. Whac ehe Nacure OF
Enis Curre is, was enquired amonsst the Geome
tors in Galilaeus S time; bue I done sind any rlrine
vas done rowards a Dilcoreer rill in ehe N’ear
7690, Fames Bernoulli pubiisted ic as a Prob’ em
etich abour turo Monchs atrer, Leibnitz declared
he had found our, and inould communicare wiet
in the ZCar: In Occember 1690, Zoln The Brortier
OE James Bernoulii communicared an inrestixacion
Of. ic ro che Vditors oE che Acta Fruditorum, votricti
vas publisted atcervards Zune 169r. This Cate.
Wric chac liert wirhin a Borough, or Wwichin a nary Or Funicilar he Paich he found nOE rO DC FrU-
ETouse, For Rene eoins ouc. of thelame, and War- ly Geometrical, bur ot che Mechanicat kind, bc
rancech a Man ro cake che DOOrS, Windos, or cause iis Nacure cannor be expressed by a determi
nace Alsebraick Fiquarion; buc Leibnit Z eives ice
Construction
Cates For Rent.
CATALEPTICK Vesse: Sec Disposition.
A LAL. LLS Captis. Nomine Discrictionis, 1&