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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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Ther vicld a licele il chrust evich joux Finger
and more here and there: AC the beginning oF chc
Colon there is a Flesty and Circular Valre, beside
several octiers in thac Cur
The Ose oFchem iS 10 AOD ThC Meat a li
hac ir may be cheberrer termented, che Chyse di-
Atribured, adjacene Parrs be cheristed wich Hea
arid lasIr, Thacic ascends or returns noc again.
VALVOLA Conniventes. See Conniventes.
VANE. Those Sighes which are made eo mor
and ide unon Cross. staves, Fore staves, Davis dua
drants, ecc. che Seamen call Vanes.
VAN-GDARD, a Millitary Term, sgnityir
che trst Line ot an Aemy dravn ux in Barcalia
This is the lame wich che Fronc ot an Army, anc
sires che hrst Charse upon the lnemy
VAPORARTOMI, is when che PatIenECIS (02
thac he receires the Vapors chrouoh an HTole, un
dex which cherc is placed a Por full oF oppotite auc
boilins hoc lnoredients, wtuch coolins, trem Mat
ter is added.
VAEOROSOM Balneum. Sec Balneum Va
poris.
VAPODRS, in a Medical Senle, is non a day
uled For the Dilease called orhervile Fsysterick, Or
ypochondriack Fits, Or Melancholy. Buethe most
common senle of the Word, is For Wacey Fixhala
tions raised ux cirher by che Fleac ot the sun, che
Subrerraneal, or any ortier accidencal Heat, Fire
C
MIr. Falles in Philosophical Transactions, N. 18C
sires an Pstimare ot che Ouanciey oF Vapour
caised out of che Sea by che Warmch oF ch
Sun, by an Experimene as Follows.
Werock a Pan (Caich he) abour + Inches deex
and7 or 9 Tnches in Diamerer, in wtich ve pla-
ced a Thermometer, and by means oF a Pan ol
Coals, We brouptr che Wacer ro the lame Desree
oF Fleat wwhich is obserred ro be that ot our Rir in
che horest summers; che Thermomerer nicely
MewwingIF.
Then We altixed che Pan ot. Water WH the
Thermometer in it, to oncend of the Beam oF che
Scales, and exactiy connerpoised ic wich Weishc.
in the orher Scale: And by che application OE re
noral oF the Pan oF Coals, ve tound ic very ea
eo maincain the Wacer in the lame precile Degrec
oF Fleat.
Doins chus, we found che Weishe ol ie Wa-
ter sensibly ro decrease; and ac the end oF 2 Flours
we obserred, Thacthere wanced halt an Ounce ot
Troy, aII BuF 7 GrainS, OF 233 Grains OF Warer
which in chac Time had gone of in Vapour, cho
one could harals perceire ic ro (moak, and che
Wacer Was nor sensibly arm.
This Suancier in C0 Morr a rime, lecmed verz
considerable, beins licele lels chan 6 Ounces in 2
Inches Diameter.
Non che Arca oF the Circle, whole Diamerer ic
72 Inches, is 49 Square Tuches; by wtich diri
dins che Ouauriey oF Wacer craporared, viz
OF an Inch, che Ouore 2:3E, OF 53, Mews, cha
the Thickness oF the WVater craporaced, was the
sCey chird parE OE an InCH; DuE We will suppose
ic orty che sixriech parr, sor thetacilirs ot Calcula-
tion.
IE cheretore Water as warm as che Air in Sum-
mer, exhales the thickene(s oF a sixrieth parr of an
Ineh in rvo FTdUrS, From irs whole Surtace, ir
12 FTours ic will exhale che i oF an Inch; Wrhich
Ouantier will be found abundanr sufficiene rc
serve for all che Rains, Springs and Dews, and ac.
coune for che Caspian Seas beins alvars ac a sand
neicher astins nor over Rowins; as likemise (o
the Currenc Caid 10 set alivars in, ac che
Screighes of Gibralter, chough chole Mediterra
nean seas receive lo many, and so considerable
Rivers.
Yo estimate che Ouamticy ot Narer arisine in
Vapour out oF the Sea, L chink I OuehEtO COn
sider it only for che rime che sun is up; For thar
the Dews recurn in the Nighe, as nuch il nO
more Vapours chan are chen emitted; and in Sum-
mer che Days beins longer chan Tivelre Hours
ehis Fxcels is ballanced by the meaker Action ol
The Sun, especially when Risins, betore the Wace
be warmed: 50 chac it Y allou , oF an Inch
oF the Surtace ot che Sea, to be railed per Diem
in Vapours, ic may nor be an improbable Con
jecture.
Sponthis Supposirion, every ten Square Tnches
OF the Surtace oF the Wacer, vields in Vapour per
Diem, 2 Cube Inch oF W acer; and cach Square
Foorhalf a Winc pine; everr Space ot tour F001
Square, a Callon; a Mtile Square, 69r4 TOns:
a Square Degree, suppoled oF 69 Enslist Miles
Will craxorate 33 Millions oF Fons: And il che
Mediterranean be estimated at 40 Pegrees lono
and tour broad, Allorances being made For the
Places wrhere ir is broader, by chole wohere ic is
narrorver; (and I am Ture, L guess ac the least
there will be 160 Square Degrees oF Sca; and
consequenty, che wrtiole Medicerranean must lose
in Vapour, in a Summers Day, ac least 5280
Millions oF Tons. And chis Ouancier of Vapor
choush verr sreat, is as licele as che Remains
another Cause, which cannor be reduced ro Rulc
Cmean ehe, Winds, Whereby the Surtace of the
WVacer is lick d ux Comerimes faster chan ic Exhales
by che Heat of che Sun; as is well knomntochose
thac have considered chose Derins Winds which
Dlon Cometimes
Fo estimate che Ouaurity oF Wacer che Medi-
terranean sea receires trom the Rivers that FaII
into ic, is a very hard Pask, unless one had che
Opporcunier eo meature cheir Channels and Velo-
cier; and cherefore e can only do ir by allovine
more than enough: Thac is, by assumine thele
Rivers grearer chan in all probabilies cher be, and
then comparins che Ouancier oF Wacer voided by
che Thames, wich chac oE chose Rivers wtiole Wa
Rivers: LAC (BerUS, IHC LBOnC, IHC L.Ber, IHCL0,
he Danube, che Neister, thie Borythenes, the Panais
FD reduce cheretore rhis FxPerimenELO an ex
2ec Calcillus, and eo decermine the chicknels oF That
Stin of Wacer, which had (o craporaced, Pactume
che Experimene alledged by Dr. Fdmard Bernard.
eo hare been made in che Oxford Society, viz
THaE a CuDC-FOOE (Enslist) OF Water, weiotis
exactiy 76 Pounds Froy. This divided by 1728
che NTumber oF Inches in a Foor, will sire 253
Grains, Or halE an Ounee, 13 = Crains, For che
Weiolc oF a Cube Inch oF Wacer; Wheretore he
Ncielic OC 233 Crains 15 21i, Oc 35 Paro ot 38,
OE a Cube IncH OF Warer.
and che Nile, di the relt beims oL no Preat No,
and ches Quancier of Wacer inconsiderable.
Thele nine Rivers, e  supore Cdest O1
ters ve delire compute.
The Mediterranean receires chese considerable
them to bring donn ten times as much WVater 2e
leat ae naces. De ld eonutletene viet atequue
the River OF Thames; noc chac any oF ihem are ()