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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 806933011:0570
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drans aboux chat lensrh (HO 4 Ox 3 FOOL Will j can be more pleasant etian r0 see how the Co-
do preur eli) is che ficrest on aIl Acconnes ro (lours ot the movins pars ill chanse ascherdo
make this Fixperimene Wichal; For il rou ule without, by cheir beins in rarious Posirions obve-
a naII GlaIs totiose Focus is nor abore a FOOT, red to, or Thaded trom the Lighr. The Mori
ex Thercabours distant From the FIole, the Repre-  On OE any Flies or Birds, is painted also in the
sentarion ot pour Objects ill be very (mall,lame Perfection: And the exact Lineaments ot
and the Figures hardly large enoughto be distin- any Persons walkins at 2 due Distance wirhour
euimted: Fo which likerrise may be added, the Clals, ivill be also expressed to che Lite, and
That nOT abore one Spectator can come to loo alL their Morions, Postures and Gestures, vilI
on ir at a rime, and eren he nor withour (ome a5 plainly appear onthe Clort, 25 chey do 10 2-
Trouble.
On elie orter hand, it vou makre ule oE a
ny ones Lye Withour.
In a WVord, noching is ivancins ro render ix
Gla(s irhich dras 15, 20, OF25 FOOT, either one ofche finest Sistus in the Wortd, bur rhar iII
vour Fole must be rerr larse, and chen lomuch (chinss are inrerred, and the urons end uprards.
lighe vill come in as vill hinder the Obicets T0 remeds which, sereral Merhods hare becir
From being visible on the WalI, Paper, (9C. OF
thoughe on, as double Conrex-Clases, (90. DuF
is che Flole be bur small, (0 litele Lighe will nonc, in my Opinion, are (0 vell, nor (0 calic,
come in, thac at the Distance oF 15 Or 20 FOOr
From the Windon, rou will hare hardlr Lighe
enough eo sec the Representarion distinetly; Tuch
larse Glasses likcevile are nor casils had everr
irtiere, nor are ther every ones Money; buc a
GIaIS FHaE draWS abOUE S FCCE, IS VeEY PFOBeF 10
bemade use on in this Case.
25 t0 ralce a common Lootins glals OF abOuE r2
Or X4 Inches Square, and hold it under Or near
che Chin, wich an Acure Angle to vour Breast:
For if rou do (o, and look donn into ic, rou ill
sec all chinssuponcheSheet inverred in theGlals;
(1. e.) in chis case, restored ro their Natural and
Frect Postion; and chis ReRection also Fromthe
Flavins sorcen such a OtasS, make choice ot Class, sires it a Clarinenels chac is very surpri-
fome Room which hach a Norch Window, cho
zins, and makes it lool like fome Magical PrO-
an Fast Or WVest mas do vell enoush (but a  spect, and che morins Imases, like (o many
South one will noc, for a Reason ro be siren be- Spectrums or Phancalms. And no doube buc
Tow) and let it be ivell Darkened, (0 chat no (there are many Persons thac mishe casily De
Lighe can come into ic, bur at che FIole where impoled uxon writh such a Scene, and votro
vour Glals is placed, or ac leas but very lirrle. vould beliere ic to be no less than donnriohe
Then matre a Flole in the Shurrer oF the North Conjurarion,
Window oF abour an Tneh, or an Inch and = in And P have made usc oF this FXperimenE FO
Diamerer, and leare open the Calement itchere convince lome Credulous Pertons rhâc thole are
Deone, For there must De no Olals Without rour abused and imposed upon, who sec Faces in the
TTole. Then fasten the Clals wich is Cenrre in Classes of some Chearins Rnares amonsA uS,
Ehe Centre of the FIOse, By Lome (maIITacks eo Who Per up For Cunnins Men, and Dilcorerers
The SMIIeK, (0 That nO puH oF Wind blon ic oE Scolen Coods, 59c. And hare larissied chem
donn and break ic; and at che Distance char chac much more may be done by chis and some
vouknon pour Clals drans, hans up a Wrhire ocher Oprical Experimenes, and char wichourthe
Sheet; or it rou donor know exactlr the Focus help ot che Deriltoo, than by any oF the clum-
oFthe Gla(s, more the Sheet roo and fro rill vou sic Mechods used by chese Vermin.
sind the Objects are reprelented on it very distin-
etly, and rhen vou mar Fasten ic chere by Nails
IFche Clals be placed in a Sphere or Globe
OF Nood Charing an FIole as large as the Glass
eo the Ceiling, (90. Then will whacerer is bored chro ic). Which like the Lire ot an Animat
Wichour the HIole, and oppolire to il, be repre-
masbeturned erery wayto receire the RayS CO-
senced on thac Stieer wich such exquisite exact.
nels, 25 Far surpasses the urmost Skill ot any
Painter to exprels. Forit che Sun Minc brighr-
ming from all Parrs ot the Objects, it will be ot
8ood Adrancase ro che Experiment; and suck
ready siced are non commonly sold bY MC. Mar-
ls on che Objects (as indeed chis Experimentis Pall ac che Archimedes en Ludeate hill, and are
never made vell When ic dorh nor) rou wilt called Seioptrictes.
tave the Colours oF all rhingsthere in their Na-
cural Paint, and such an admirable proporrion ot
Lighe and Stradon, as is impossible to beimita-
red by AEE; and P Ver never PaW any thing OF
phac kind chac comes near this Natural Land
scape. Bur if che Sun do noc Chine, the Colours
riil be hardls visible, and aI will look direy,
dark and contused; rheretore l adriled a Norrt
Nindon, chac vou may have che Meridian
Sun ining on rour Obieet in irs grearest Splen-
And as by ehis Method any Tmase may Be
made appear in a darkened Room, Dr. Hook, in
Philosoph. Transact. IV. 38. Sires a way oE doirs
the lame chins in an Enlislcened one, cicher by
Day ox Nieht. The Fxperimene I have cried
my Selt, and is a5 FollOWS.
Oppositerothe WNalI, Or Place Where the AP
parition is to be, let a tole be made abour a
Foor in Diamerer Or bieger; il chere be an histi
Windom chachach a Calemene in it, it wilt do
better.
Wichour chis FTole, or Casemene, (0 char the
Company inthe Room mar nor see what is done,
Place rhe Picture or Object rou vould reprelent
ced behind, il che Picture be Transparent, reslect
 roietim on vour Livels Picture; and nertine l che Rays et dhe duve, lo chac ches may patocluq
dor, chat (0 che Experiment may be in its uririost
pertection: Buc vou must by no means tave
all wviil be contuled.
Anocher chins in Which ehis RepresentaciON
exceeds Painting is, Thachere rou hare Motion
exPPeSsed on vour CIOTh. IF rie Nind more inverced; and by means or Lockino-Glasies pla
ihe Sun Minc on ornear che Hole, for it ic dorti
EtC LICCS, FLAHES OF FIOeES WnOu souMave