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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 806933011:0194
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The Colours will FallErom H E0 O O he Boarc ) che SpOTOE Liphe axpears c0 che Eye is at C, voter
Colour cevole ee icu aces ce chetlole ,
ML, buc anocher place (luppole N) lome dultance
trom che orher, and in likre manner will cach Co.
lour beretracted c0 Fall on 2 ditterent place, tho
che Ctals PR L be held unmored. This Eixpeit
realon of che Lacc e  ete) CHat
mene proves che differene Retransibilier oF che pur a Past. board or thick Paper AB, or thelike
RayS OE Lixhr, and char differene Colours do wich a liccle round PIole ac C, Which beins ex
thence arile.
Rays Fals whiea cerares che fundamentat
Mews che disterent Retranstontes et ie las
aolicch ocherroile oula be deal tolie ad lae tabte
FG: Let one onty Colour (luppose Blue) falt on che Rays vould hare Fallen had chey nor been in
theHole E, and ic will be retracted y  Lelcepred, ond os a bienels accordins eo who
XL 10 talI (suxPOSC) at M; then move che Liehr Falls on che Clals, whereas the coloured L
mage bur will appea so et ide cmes tonget
Ctals A BC abouE irs AX (0 a5 co brins anocher
and ic wit bs che clalo  De ertacle net 1oseu clap.
For che Floles D and _ beins HL , at alt
Experiment III.
ADC isthe Prism, uxon one ot whole Sides is
Poled r0 che Suns Rays D P, chey are retracted
alta Calcte Ca. Mouto) Codaido 1L.
the Clals LX L, ris plain, chac che Rays have
like incidence on che Clals PKCL, buc che diste.
rene places rhere cher FaIl on che Paper, a5 M
N, XC. Mew 2 differene Retraction in the Clals
TKL; and che Eye dilcovers a differene Coiour
accordine c0 che differene places on wvhich etic
Doctrine ot the Lheory.
MIr. Vemton directs ehis eo be done  a Uatm
Room where (no doubr) aIl will apPCAE more
exact and libetr. Ms cilas fior wanc et Conve.
Well enolea to Caristie me oF che cruch.
niences) vas in an open Room, bur ic succeeded
Ele obterres, chac ihe oblons maBe o Cotouis
FO will Be abDuE 5cimes ls breadch, which also
Experiment II.
Deins in a convenient Room wrhere che Sun H ZIS L Fens Cor a common Maenitxine Ctal
hhinc on ese ocher end; then move ic lo; aboul Ils
Hlola a blece Ot Laper R L. in ThE FOCuS, Where
AX, Thac che Colours may appear somenhere on allche Colours are uniced, and the licrle SpOT aEO
che ass; tind che Colours wich vour Pye look-
will be perfect Liphe or Whireness: Bur it che Pa
N) ehe Colours will appear. It any Colaurs be
intercepred as ac P, che Lixhe near O will noc be
clear Wrhice, bur inclininq co che remaininq Co
lours. Ische Blue be wancine, che Whire will Be
Comewhar Reddim or Flesh. colour, and it the Rec
be ancins che Whire will incline to be Comethim
Bluict: And it only onc Colour be ler comerorh
Lens, chat Colour wichout alceration W becran-
Gerr d rorhe PaPeF K P
This ExperimenE BewS, (L.) Thac all che C0.
lours beine unired make Lighe or Whirenels,
(2.) Thac it avy Original Colour be wancine, che
Whire will nor be purc. (3.) Thar 2 Simple Con
lour is noc alcerable by Farthee Retractions,
which also will appear il anocher Prisn  pu
ac0
mines chrouxh a Hole or open Calemem, curperale cnous  recerre ant ine Conureu Hlago
will axpeat a op  ee L. B.
vour Back Conardsche sun, ana hola ene end sodete us dens made loconretse os em ea
oCthe Lem (0 ro vour Fyc, phac ete sun ulas sens  de ea i eoeo t  Ctalo.
ing chrouxh ehe orher end ot the Cats al lhete, pet K L. be held tarther or nearer OA (aS aE MOP
Ttie reason oF chis Appearance is chis: TH
Parallel Rays D F. meerins wich che Clals ac L
and afan vich che Air aC F, are separaced by
EXperiment IV
EAB C H Be a piece os sine sille ot a livels
chele rno Retractions, che leas retransible ap- Scarter Colour, whose Fdges AB and G F are
pear lca ac r, and che most rellansioe appeatACCaISIIL, Patane Ala LIIOOIH; LeL CD LL B
Blue ac b, wich che incermediare Colours berween. anocher. piece ot Violer Blue Silt, like and equal
These Colours beins viered by che Lye at L, hesto che orher. Lec them be placed as in the Lisu
Rays come back (near) che lame ay chey wene, on lome Black Cloch or Door Wich cheir Edges in
and arc eletore in like manner united ac che a Uraiphe Line. Vieu them chrouph a Prilm at
Fire, 25 he) irere in cheir Incidence fromtheSun, abour rwo, or chree Yards distance. The AX ol
and consequenets vade c lame Appearance the Prilm being. parallel 1o the Posirion ot che
CWtire) ad  LIBC it CetI. Ihe Place noherc) Siko. So Will che Bluc PieCC C F axpeac loret
ta