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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 806933011:0209
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Y
CONAKIOM or che Glandula Pincalis, is a
parc oF che Brain hangins in the (mall Cavicy cal-
Led che Anus in che hinder part ot che chird Ven-
cricle of. che Brain, and leadine ineo che Ach; it
15. l0 called. From che Mape of a Pine COnc. DCs
Carres suppoled rhis Clandule ro be che Seur ot che
Racional Soul; bur ies Substance beine che lame
wich che rest oF che Brain, irS probable ic serves
tor che Came ule.
CONATOS Recedendi ab Axe motus, is the
Endeavour which any Body mored circularly hach
1o recede or Ay oH trom the Centre or Axis of ils
Morion.
CONCATENATION os Causes, is a Ferm
somerimes uled i0 express, thar an FHect is the Re-
sule ol a lons Chain ot C aules dependins uxon, or
link d. io one anocher.
CONCAVE and Concavity, Genities, the FIOI.
lonnels ol any rhins: See Convexity.
CONCAVE Olasses, are such asare pround hol.
lom, and are ulually oF a Spherical Fixure, tho
they may be oF any ocher; as Parabolical, _c.
An Objects seen chrouxh Concave Classes appear
erect and diminised or lesened.
Whac ehe Virrual Focus ot a Concave Class is, sec
under chac Term.
The consuled Appearance or a Poine chroueh
any Concave Class procceds trom the tOO PreaF
Conchoidus atd 15 chuS pcOduCCa.
Diverpence oF chose Rays which Fail on the Lye; Be moved wirhin che Righe Angles ADC, CDL
Wheretore, because che more remore the Eye is chac ine Point C keep alivars in che Perpendicular
trom che Ola(S, che less will che Rays diverse, C D, and. che Poine. A run alvays in rhe Linc
cheretore che farrher che Pye is trom a Concave
Class, che more distinet rill be che Appearance oF sec (by che Fixure) rhac a Curve may be Orpa-
any Object chroush ic, choueh chemore faint.
The Apparent elace ot Objects seen chrouxh) chic Aidins Ruler B AF. And chis Curve Nico
Concaves is alvars brouphe nearer ro che Eye; medes calls Conchoides Prima, wrhich hiach chis Pro-
entrich is che reason why chey hele Morr-Siphirea
Perlons; or such as can sec orly nieh Objects di- drann trom che Cenere C r0 etie Ambic ot che
cinculy.
For a Rule 10 Ar 2 Concave Class r0. rhe Pre oF chel, ver rhac parr ol chem wtich is berwveen chc
sucb a Person, lec him observe nicely the Distance Curre ana INC BHCCERIK AL, aS AB Ab, _
ac which he can read Letrers, or sec Objects di- is alvays o onc and. che Tame lenertu; 25 is platt
Rinctly; erhich suppole ro be uc 12 Foor, chen fromthe Cenelis ot rhe Conchoid.
Will a Concave Class, Whole Vircual Focus IS a FOOF
distant trom ic, make char Perton sec distant Ob-
sects distinctiys
The tarcher che Ere is remored trom any Con-
cave Class che lels che Object appears, and a lesser
Area ot ir is seen; and wrhien the Clals is exactl
in chemiddle berween chelire and che Object, the
Object will appear che most diministed, chac thâi
Distance becween che Erc and Object will al
Jow ol.
CONCHOID, in Gcometey, is chC Name ot 2
Curre, lo called by o n Nicomedes che first
IF a LINB. Line, a5 BA L DC IO CONCCIDCd Le
ADL3 O) Chac complicared Morion ris casie c0
ncally described by che Morion oF B, ihe Point ob
perey, chatchouph che Righe Lines CB Cb, ec
Curre, are noc as in che Circle equal ro one ano.
Proposition L.
Ahis Conchoid B bb must on boch sides the Per-
pendicular C. Ob almays approach neat et 0 i
Forizontal Line or Directrix L alu set Las
neder coincide mithit.
For ehie Lines ab ab beine all OF the Tame
lenech, and buc one onty (viz. bD) perpendicular
to AF, ies plain as chey groir more remore che
COTICEMTRATION, according eoDE. Crem, (Wa) H M LCKNUKWAL, CHCS HIMIE DE HII
is chehighest degrec ot Mixture, and is When rivo uor adu hete henned rorho Directrix AP anc
or more Acoms or Parricles of the. Mixture do rouch make Anles more and more acurewith ie; Where.
Dy Reception and Intrusion oF ore into the ocher: Fore the POIMC d M Continua Cem MCaLC anc
And ehis he cakes ro bethe cale oF aII fixed B0
dies which are withour Past or Smell, Whose Con-
stirurion is (0 tirm, chac eill che Parricles are as ic Rishe Lines, as is also the Line AF; and since
vere unpinn a trom cach orher chey cannor affect che Poin A can nerer go our ot the Line AF, ris
nearer ro che Linc AP
Ao accaue  CC L  L anit Das alO ICIL
impossible chac che Poine l in che Curve Calt ere
Cither OF FhOIC SCMLLS.
the laie common Centre.
CONCEPTIO, 2 Crammarical Figure: Sec
CONCEEFION, is che simple Appretention.
Perreprion, or Idea ial We are bl ilis chins
alvays be distant trom ic che lenerh ot che Riphe
Line AB) and consequems  Curre can never
Sylde pIS.
Bonc il
wirhour proceedine ro attiem or deny any chins a
COICENTRICK Figures, are such as have ) come d be co incident wirh che Point a (For rwil
COTTCHA, is che windiux Ot clC. L. a V Ot IC
inner parr ot che Far.
come ro rouch chelime AF. 8. F. D
Proposition TI.
Tet can there no Right Line be possibly drann be
exeen che Curve and che Directrix, but nhat
il ous ehe coucheid nhen produiced.