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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 C
follons: Ochervise the Hlumour chac ROWS FrOM
it is whrire, che stin hard and clete, and spreads
Farther.
AII These Porrs arise especially in che Feer and
Flands, and infest che Nails likremise.
impetiso some reckon the Came wich Lichen.
Blanchard.
IMPETIGO PLIHII, eliniS Empeciso, is ehie
Tame wvich Lichen Graecorum. Blanchard.
TMPROPER FRACTIONS, are such a5 have
their PVRMeTALOTS equal EO, Or Preater then cheir
DeNOMINATOTS, 255, 13, (90. Which are nOL Fracti
ons properly speakins, buc cicher Whole dr Mixe
Numbers; and are onty pur into che Form ol
Fractions, in order to be added, subtracted, mul-
riplied ot divided, (3C.
TNACCESSTBLEHETOHT Or Distance, is chac
Whichcannor be measured, by reason ot lome Im-
Dedimene in che WaY; 25 WVacer, (90.
TNADEOOATE IDEAS, are Tuch, erhich are
Dut a Parriat, or incomplere Represontation oF
hole Archerspes or Imases ro which che Mind re-
Fers FheM.
Fvery Ray oJ. LIhL Soes the sortest may that possi-
bly it can: But il rou suppole che RaY ac, 10 Lal
on che Plane. ClaIs, Or Surtace e 5, and thence r0
TNANITY, is che School. Forin Forrempriness bereRected to b, l0 chacthe Anele a cebC= 
er absolure Vacuiey, and implies che ablence oF al
Body and Macrer Whacsoerer; (o chacnochins re-
mains bur BarC SpaCC.
INCALESCEHCE, is a Thins sromins hocby
Fome Incernal NOrion, OF FerMenEatION; a5 When
Ouick- lime GroWs: hoc, by pouring Wacer up
On IC.
then will the cruo Lines a c and cb Bc the LWO
Morrest Lines thac can poltibly be dravn Fromche
Poinesa andb, rochelane e s: For Instance, ches
Will be Morrerchan a a )= d b, Or any Others.
Produce cb rof, and draw d f, because the op-
Posire Ansles acc are = the Ark ef (=
b3
a e bs che supposirion; buc ris plain chac fe=
NNCALESCEHT MERODRY, COME. Boyle aC, a d and cf = c b. Wheretore fI
2
calls some Mercuries of an uncommon Preparation, -1 = c b) will bc sess chan df (i. c. a d) -]- db:
irtrich by beins minsled wich a due Proporcion oF and (0 it will be erers wrhere elle. WVheretore since
Coold Lcares, or (mall Filinss, vould Amalsamate, che Rar must g0 the nearest way, the Ansle oF In
and eron hoc wich che Cold, eren in che Palm ot
our Fland:
IN CASO CONSTMILT, is a Wrir. Sec Casu
Proviso.
INCEPTIVE OF Magnicude, is a NVord used by
DE. Nallis, expresins such Momenes or First Prin-
cidence ill alvass be = 10 chac of Refection:
For che cuo Ansles ec a and b c 5, beins rhus C
qual, cheir Complemenrs a0 P and P c b, myst bc
IN CASI PROVISO, i5 2 Weic. Sec Cosu
Proviso.
(OF0O.
Thacche Anele of Incidence a c P, I5 = +O that
ot Restection P c b, may very briesty bechus pio.
red.
Produce che Ray ac directly rill ic meer wictu
ciples, 25 cho oFno Masnicude chemlelres, are che Perpendiculor sh, in che Poinr h: Then make
ver capable of producins luch. Thusa Poinehach
no Magnitude ic selt, buc is Inceptire ot 2 Line,
wrhich ic produces by ies Morion: A Line consider
eH = sB, and dram cIE: LCay cREis che RC
Hected Rar, and choc che Ansle PCk = acP.
For P beins drann Perpendicular ro che Plain e 8,
ed one WaY, hach no Magnicude as10 Breaditi, but the Angle ec a - = acP= = Kc5 ] - PCK; bC.
is capable by is Morion oF producins a Surtace
artrichhach Breadch, (9C
INCERATION, is amixture ot moisture wich
Something chac is dry, by a genele Coaking, eill che
Substance be bronshie co che Consittence ot SOF-
Wax. Blanchard.
INCIDENCE.. In OptickS, che Anole a CP,
made by che, Ray ac, and rhe Perpendicular PC,
is called rhe Anele of. Incidence; BHE DE. BarroN,
and lome ochers, call ic che Ansle of Inclination.
aud by che Ansle os incidence, chey understand its
ComplemenECCa
ME. Molyneux, in his Dioprricks, ales ihe Words
Inclination and Incidence promiscuousy, and by che
Ansle of Incidence or Inclination, alvays intende
ihe ArsE naMC AHSLCS a CP.
The Anole P cb, is called, The Anele os Reste.
ction, and is always = 10 che AnsIC of Incidenc
5P: Which is chus Prored bY Leibnutzius.
cause Boch arc = L: BuE CC a = 5 ch, because
Verrical and cs B = sC R by Construction.
Wheretore ec a= bC5: And consequently cheir
Complements a o P and P cb are equal. Q. F. D.
In Dioprricks, che Sines oF che Ansles of Inci-
dence, and Resracted Angles, are to cach ortier re-
ciprocally as che Resistances oF the Mediums, 25 15
demonstrared by Leibnuis in Acta Frud. L ipsiae, AH
10 1682, P18. 185. And in MP. MolineuxS Diop
trica Nova, ParE 2. Chap. Y.
NIP. Nemton discover d, Thac From Rir e0 ClalS,
che Sine of che. Ansle ot Incidence, is ro the Sine
oF che Retracted Ansle: : 25 300: 10 193 (OrnCar-
ly 25 14109.)
And on the ConrarY, That From GlasS rO RIr,
thesine of cheincidence, is ro the Sine oF the RC.
Fracted Angles: : 25 193: 10300, OF 25 910 14.
Buc in his Dissertations concernins Light and
Colours, he has demonstrared, Thac che lays et
Lighe a
but oF disterene Forms and Figures, (o phrar Pome
are more Retracted chan ochers, tho cher hare che
Tame or equal Inclinacions on che GlaIS: And
Mheresore chere. can bc no constane Proporcion seu
x
berweem