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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 806933011:0423
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winding Vem, lvon ieh i BO aoa
vich ocher Moisturc. Blanchard.
HTGROMETER, che Canie ich Hygroscope.
ritich sec.
HTOROSCOPE; is a Philolophical Instrumen
conerired to Mew the Moisture or Drynels oF che
Air, accordins as ic abounds wirti watry or de
Sceams; and eo meature and estimato che Ouar
rier oF Tuch Moisture or Dernels.
T0 mate a Lyoroseope with Oyl of Vitriol.
Procure a good nice pair oF Scales, nocroo Righ
chac will ruen wich about z Part oE a Orain, (O1
 PatE oF a Grain Will do preuy WwelI) into one o
chese in a Aac Cta(S oF about 3 Or 4 lriches in Dia
meter (such a kind oF Clals as holds che sagnate
Mercurr in the BarO(CODC) DuT 2 Or 4 DEainS O
ehe OyI ot Virriol; hans up the Ballance in
place trec trom ehie heac ol the Suns immediare
Beams, or a Fire; anid pur WVeighes in the ocher
Scale, ro reduce ic ro an Equilibrium, rou vill bC
surprised eo find chac this Liquor will, il ic vas
800d, and ell dephlesmated, double, nay, per.
haps creble che Weishe in a Fornighe, by auract.
ins and imbibins che Moilture oF che Air: Bur lo il
Will certainly do moreor lels, accordins tothe Sea
son of che Zear, and che Temper of che Weathei.
Tou mult let this Liquor hans eill rou sind ic hact
eain d ius urmost encreale of Weighe, wwhich wil
be in less chan a Fornixtus cime, untels it be ex
ccedins dey and hor Weather.
And then rou may begin co makeule oF it as an
Hyoroscope: For as che Oyt oF Vicriol preponde.
rares, che dir increases in Moisture; and as cheo
cher Scale Where che Weiphes are, preponderates
its Draughr encreases in the lame Proporrion. The
Degrees oF Moisture, or Drynels, may be compu-
red cicher by Cmall. Weiphes pur into che lighcer
Scale, or else by havins che Flandle ot che Scale
verr lons, as allo che Longue, (0 chac ic Chall virt
ies Fop mark che Divisions on an Arch oF BTaIS
char mas be applied for char purpole on rhe TopC
cheflanale, orer che Tongue oE che Ballance.
The Hlyerolcope os Mr. William NolIYneuX, SecrC
cary of the Philosophical Society et Dublin, is ehi
made.
Fasten a piece oF Wtip. Cor, Ot abONL 4 F00)
Pone, ro an Hlook or Scaple, in some conreniene
place ot ihe Cielins ot a Room; and ac che BOL
com hans a Wciehe ot abour a Pound: Lec there
on, or inco che Borrom of che Weishr, be Fastene
an Index ot abouc a Foor long; and under ic on
Table, or on a picce ot Board, Place a C ircle dir
ded inco whac Number ot Degrées ron please, anc
tic ic Co chac che Cenele ot che Index may hans jul
orey ette Centre ot che Circle
Aller ic hach huns chus 2 or 3 Dasslo lteu
the Cord, vou mar begin co meature by ic rhe De
erces ot Hoisture or Drauxhe in the AIr: FOr ch
Cord ill cist one war, and concract ic selFFO
Nec, and uncwist ic selF again che concrary wa
FOF DEY. Tou will sind chis plain and simple In.
Pcrumene, chenicest Lrerometer ot any, For ic vit
ew vou rery (mall Alcerarions of che Temper 0
he Air, and is subject ro terver Inconveniencie.
hon any ocher Instrument oE chis kind.
A very 8ood Eyeroscope imay le chus easilys made.
Fate a smali DeaL BOx, arid co che BOTTOM, OK
one ofche Sides oFir, fasten AronglY a preter large
Picce ot Lurc Arins Or Cars. Bur, ard then bring-
ins che ocher end chro a Hlole purposely made For
c in che opposice part or Side oF the Box, and Whick
must be so muchi bisger chan ihie Scrins, chac rhe
Scring may curn casily round in ic any may: Facten
cortie Sirins (Wwichour) a lighe Index, made OF 2
piece oF Ceder or Deal, Gc. and round about etie
LIole where the Scrins comes chro, draw a Circle
on etie Box, arid diride ic ineo Degrees; (0 char
the Scring cwistine and unewisting it selt, as ir wilt
do against Wvec or dey WVcather, may cuen the LII-
dex alono Wwith ic, ardthat wvill Meu in elie gradu.
aced Limb oC che Cirele, che Mealure ot rhie AirS
Moilture or Deynels.
P have olcen triedchiis kind oF HIyproleope, and
Found it to do verr vell. But Dr. Hook in his Mi-
coeraphia, Cairh, Noching will Chew the Variacions
ot Moisture and Drynels in chie Rir, like che Beard
oF a Wild Oat; Which he thCre (P. 147.) Mews
vou hon co tic in a proper Box or Frame, and wicti
an Index, (9c. Buc l’beliere che Caes- gur one.
tho noc (0 very cender as this (and ver l have
unow one 50 cvice round che lame Way) may re
cain ies cuvistins aud unistins properis meer
Ionger.
Palivays courd che Wind co have a peculiac cF.
tect upon chis tnstrumene.
Anocher LSBC ) Llam Boards.
Plain tvo pieces ot Deal, or (irtich is berrer) ot
Poplar Boards oE abour rvo Foorlons, ind a FOOr
and a hals in breadch, and set them DC Morten Or
Jornced, Pochat cheir Ldges will meer even roge
cher; let rhose beset close rogecher like a P’annel ot
Wainscor, wich cheir Tops and Borroms let into
theCrore oF a Arons Oaken. Ledee, and cheir tour
outward Corners poinced into cheGrore; buerhere
need be no Ledges ac he Sides, chac che Boards
may plas chebecter.
Lnenturce crels oc nono cla cilete Odacus
will Mrink very much in exccedins dey Weacher.
and consequently sapo or open trom cach ocher
suxpose che urmost Diltance thac ches Will LMITINK
trom cach ocher, to be a quarrer ot an Inch inore
or less ir matrers nor much. Pake a chin piece ot
BraIS OF tvo ox three Inches lons, and abour 2
quarrer ot an Inch broad, and mealurins ac one
end oF ic 2 quarrer of an Tnch (or rhar distance vou
suppose jour Boards ill Chrink) diride ic into 5 c.
qual Parrs, and chen wich a (mall File cur chole Di-
visions inro (0 many (mall Tcech like thole ot
Wacch. Wheet: Then drillins 2 Or 3 HToles in chis
piece ot Brals rovards che orter end, ivich some
mall Nailstasten ic on one of vour Boards, Tothar
the first oF ehe s Teeth may lie just over che jun-
cture oF che Boards, and che rest lie over the orter
Board. Nexr on the end ot a piece ot chick Tron.
wire, matce a Pinion oE 5 Tecrh ro ansiver ches
Norches in the BralS- Plale; aHa B) MICaNS OL 2
Bracker, tet it be (0 Fasten d on che ocher Board
chacies Axel plavins in che Bracket, it may sic the
place; and chen whenerer che Boards Chrinte alun-
HTOROCTASOCELE, is a Branch ol atiy
Tecth ot ies Pinion ro che Norctes in chie BralS.
aet, ede Ctalo Cel ulait a Ulle ada ul
necds curn chis Ael more or lels; and Wwtien che
Boacdo have Mrrunt a quacrex ot an trch siom eact
octer