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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 806933011:0195
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thanthe ocher (2iz.) 25 in c d ef. The tcalon 0
rohict appearance is, char Blne is iibC Leltat.
ficte than Red.
Elen che Paper M N alide a licene lrom its let-
pendiculariey coche Cla(S, ehe chird Column wtrich
vetore appeared Wrhice ill all appear in Colours
aritins ouc ot the Whire, and sreamins rowards
vou, beins alvays in a plain P’erpendicular to rhe
Axis oF che Prilm.
Erom ehis Experiment and che forepoine Do-
ctrinc, e have che realon why a Shcer of Whire
Paper, or the like, appears coloured onty ac tho
Edses, For there ouly che Colours wane orhers to
mix wich ehem: In che midale, cakins ans Poine
che several Colours trom lo many orher POinrsmeet
chere asmake Whire. For instance,
Let er be any licrle Parricle
in che midale ot a wwhire Sur-
race, Whose other Colours
sreamins rowards B, leare che
Parricle rr ic self Red, a5 the
Squares will do in the last Fxpe.
riment. The Tello ot che
Parricle yy, the Green oF che
Parricle 58, the BIue oF che 3:...: y
Parricle bb, d0 alI reer on ThC
Parricle rr, which is Red.
B
(For it b b evere a Whire Parricle, and aII
Black abour ic, ies Blue Colour ould be seen ux
on rr; and it e x vere anocher, ies Blue would
be belon rr, and its Creen upon ic, (90.) and (0
chere being a concurrence oF aII the Colours thAE
mate ux Whire, it consequencly axpears Whires
The Caine is ro be Caid ot any orher P’arricle Iyine
lo Far From che Fdses as co hare ocher Parricles
berween to crantmit cheir Colours.
IF a square Paper Deheld (0 Areiphe betore vou
in a streiphr Line 5 or 6 lirele Squares of Whire rhac che ruo side Fdgesbe in a plain Perpendicular
Paper, abour che bignels and ac che distance as ) ro che Axis of the Clals, chey will be White, aHa
no Colours appear bur at che rop and borrom, the
any wohire Spor chrouph che Cila(S, ana iHen turn
hisher rhan the ocher.
So in the Position ot the GtalS D F. che wtire
Spor alcends irs Colours cowards b, and in che Po.
Black SpOC, 25 A upon a Paper, be view d chrouph
on it, and under che lorver parr will appear Red
mmo 
Lhro will more tully appear, it instead ofthe BI1
Silk C F, there bc lec tall in the place et l
c ade Rays trom anocher Prilm (che oche
Colous being incercepred by a Paper wich:
Square Hole for the Blue co pals chrough.) II
ehe SIIK AE and che Blue Square C F b
vievo d chrouoh a Prilm (a5 betore) che Blu
Wil appear tar belo, a5 ac R L, chis u
a more pertect Blue chan aus e can
bc oF.
o
Experiment V.
Le MIN Be che Black Cover oE a B00K, Pa.
per coloured Bldck, ol ele nC; Wbon wrhich lay
mixe chey produce Wbiteness, and appear a5 in
ehe Fioure, Ars Column. View chele chroueh a
Priim 10 25 Chac che Rou oF licele Squares have i15 Preamins oF ihe Colours beine in sucH a Perpe
IaE EO THC AX OF the PriIm, an abOUE EWO FOOE
oF Colours proccedins trom every Square comards
ehe nexl Dearer vou, che Colours arisino oue of
cach Whire Square. Nove chele Squares neaF 1O
one anCHer, OF pur Ochers berween them, as in
ihe second Column; (Aill Keepins chem in a
Araighe Line) and rou will sec as they come near
thac the Colours mixins one wich anocher, will al
rer, appedachins nearer ro Whiro, eill chesquares
collen, alu inen all che Colours beins pertect
onc end romards rou, or ve in a plain perpendicu. dicular Plain; as may be observed by lookine at
alstance trom the GlalS, (0 will vou see 2 Scream ins is a lirele obliquely c0 che Horizon, or oncend
sirion FG the Colours sream From a 10 c. IF=
thePrilm, che cop will have Creen and Bluc up
and Tellon; the reason of ertrich is; that Mhe
ihe chird Column, a Whice Line, opty caes dericti Blue comes trom che Whice abore ic, ane applarS
Red ac the cop and Blue ac the borrom, there bc- on rhe Black, chere beins no orher Colours coMII
inx no orher Colours cominu trom abore co mix wich ir: The Red appears under the SpOc becaule
nich che uppermost Red, nor any Colours Lelov che Black Spor trantmirs no ortier Colours 1omix
ihe Bluc ac borcom sor ic r0 mix wich. HF you wich cheRed.
Exper