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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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or Burgesses oF any Town, chac hare a Charter or rou see che Mark ar C, chen cho degrees uxon the
Prelcrixtion eo tree them trom Tol, against che
Onicers oF any Town or Market, wtio vould con-
strain chem to pay Fol oE cheir Merchandize, Con
trary co cheir Caid Crrant or Preleription.
THEHOR, Or Tenor, accordins ro lome, is che
Name for an abducene Muscle Which draws the
Thumb trom the Fore- finger.
TITEODOLITE, is an Instrument uled in Sur-
vegins, and catins oF Feiplus and Distances.
EE consisteth oF several ParEs: AS,
1. A Circle of Brass, divided into Four O
dranes, represemtine the four Cardinal Points oF
the Compass, Fast, West, North, and South, and
noced with the Lerters, N, S, WV, F.
Fach oF these duadrants is divided into 90 DC.
prees, and Subdirided as the Largeness ot the In-
strument will permit, commonls by Diaronals.
These Four Ouadranis are to be numbred by
20, 20, 30, (50. boch ars beginnins ac the North
and South Points, and endins wich 90, ac the F ast
and West Points.
2. A Box and Neeale, Lo conveniently conrrir
Limb cur by cheindex, sires che Ansle B AC.
TFTFOREM, is a Speculacire PrOPOrsiOn, de
monctrarins che Properies ot any subject: This is
cirher,
F. Tniversal, which extends univer fally to any
Ouantiry Wrichoue restriction; 25 That the Rectan-
Sle os the sum and Differenae of any tvo Ouantities
is equal eo the Difference os their Squares.
2. Parcicular, wohen ic excends omly ro a parrieu-
lex Ouarries.
3. Necative, which Demonstrares che Impossibi-
liry oF an Assertion; 25, That the sum os tuo Bi-
quadrate Numbers cannet mate a Square.
4. Local, Wotiich relares t0 a Surtace; 25, That
Trianeles os ihe same Base and altitude are equal.
5. A Plain Theorem, is chat which relates co ei-
cher a Rcctilincal Surtace, or to one rerminared by
ine Circumference oF 2 Circle; 25, That all Aneles
in ebesame segment are equal.
costand upon the Center otthe Circle, uxonwhich 6. A Solid Theorem, is thar wtrich erCAES abOUFL
Center, che instrument, che Index wich ies Sishts, Space rerminared by a Solid Line; chac is, by any
must be made rotur abour, and rer boch che in- oE che chrec Conick Sections: a5, IF a Richt Linc
strument, and che Box and Ncedle remain Arm. AF
theborrom ofthe Box chere must a Card Ox Mari
ners Compass sixed, an (verable tOthe L. CETeNS F. W
NV. S. uponthe instrument.
3. A Socker O the Back side, (cither Plain O
vich a Ball, Wrhich is much betrer) ro be put upor
ehie (Pead ot a chrec- lesged Scat.
4. AStasf cO sex The Instrument upon; the NecK
ac the Ilead whereot, must be made ro 80 incorho
Socket on the Backlide oF che instrument.
IEs Dse is For cakine Fleizhts and Distances, as alle
ratins ot ansles, in Surreyins ot L and, 16.
cut too Asemptotick Parabolas, its tvo Parts termi-
nared by themstall be equal.
7. A Reciprocal Theorem, is oI Whose Converse
istrue; 25, That is a Priansle have emo equal Sides
it must have tvo equat Ancles. The Converse ot
Which is true, That is it have ero equal ansles, it
communicates vich them by lome Spiracle Ot C a
nal, by Wiest a sleuer Ouantier ot Elcar is deri
169
Lotare est duanticy os an Ansi  ii
Theodolice.
A5 Suppose ehe Anele A, oF 2 t 11
iotose Sidesis AB Or AC.
must hadc id equat Sides
THEIAPEDTTCA, Is MIaE ParE OF Physick
erhich delivers he Mechod oF Fealine
THEKIOMA, I d Wctuet VIcer, litre Car-
cnomu, Which lec. Blanchard.
THERMA, are ihc Bath or ocher Medicinat
WVacers thich are HOL. AIS most probable, a5
DE. WVoddmard Well oblerres, (NVat. Ls.  the C arth,
P. 144.) LHac iete ad HoC ove cheir LICar 10 any
Colluctarion or Fferrescence ot che Minerals in
them; but corhe Subterramun FTeat or Fire, Wtrich
ved chirtter, cais co orllinarr Springs. Tho
MIP. Charas hach lately revired the former Opinion
Vid. Memoires Mathemat. (3 de Physique, A. D
LLIERMANTTCA, aECMLAILIZ LMCCICMICS.
LHLEKMOSCOPE, OE Thermometer, 1 d LM-
the Flear ard Cold, ot any parricular Place; Or 0
about chree ox tour Looc l’erpendicular. 10 2d
just the Dirilions, Or Deorees or Which; che BalI
may beplaced in Warer, wrhich is just beginning ro
Freere; and hen norins cheheistir o che Spiric in
the Scem, place against thar O, and graduare iE
alterrard, up and donn, For Ileat and Cold.
DE. FTook, in Order ro adjust chele Graduarions
vich elle sleater AccuraeY. hach contrired, and
describ d at LCtumCHC COF Chac purpole. Dec M
locophical Instrument, usually made oF Cla(S, sill-
ed with ringed Spirit of Winc, or lome ocher pro-
per Liquor; and designed ro mealure, ex ckimate
the lame Llace, in anteeme Seasons, and at ditte.
TCHE LimeS.
Al The Borrom, is a preter large BaII, Ailled vici
the Spito linged Liquor, Wten a eMHIS, 1
Place rour Instrumene in che Angle A, Or asne.
as possible, and let MarkS DC set up near B and C
(otar oA the Fledges as rour Instrument at A stands,
(which VeE IS ROE RCCCSarY) rhen tuen the Instri
ment abour, rill chroush ehe Aixcd Sighus rou le
the RTarK at B, there sCreW iE FATE; next turn thC
moreabse lndex, rill chroust che dietto cherect croerap. .