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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 806933011:0932
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sy D) ChIS means most
easils Colred, and Wichour ic hardly explicable.
Supposins cheretore such a Circulation as above
eis to De considered, thad
CNorchward oF che
Tnaian Ocean, there is everr where Land ichin
cheusual limirs oF ehe Lacieude OF 30, viz. Arabia
Persa, India, Xc. Which For the Tame reason, astHe
Mediterranean Parrs OE Africa, are subject ro unsut
Ferable Flears, When che Sun is torhe NorrI, pal
sing nearIY Verrical; but yet are remperate enoust
Wrhen the sun is remored rowards itre orher Tro
picke, because oF a Ridse oF Mountains at some di
sance evichin che Land, Paid to be frequency in
Nintet corer dwith Snou, over Which chie Air 2
ic passes, must necds be much chilled.
Flence ic comesto pass, rhatthe Air comins ac
cordins corhe seneral Rule, out of rhe NVorrt- F al
in the Indian Seas, is Lometimes horrer, sometimes
colder, than chac evtich by chis Circulation is re
turn d out of che Souch.WVest, and by consequence
lometimes the under Current, or Wind, is Fron
che North. Past, Lometimes trom the Souch
NVest
Thac chis has no ocher Caure, lo cscde from che
Limes Wherein chese WIas sec in, viz. in April.
Wrlics ehe sun begms lo liaem chole Countries rc
the NoTM, ehe South. Nest Monsoons begins, anc
blos curins the Llcarstill October; wtien the sui
beins secred, and allchinss gromine cooler Norh-
vard, ard ehe Fleat encreas l0 ile Souch, the
Nos. Last enter and blo al ese tullercll Apri
aam. And ic is undoubieass sen en lame Prin-
ciple Malcothe Souchrard. Ot e L quator II PaI
OF the haran Ocean, the HNOIC-Mek trinds luc
cecd thie South. Bast, Wehee Sun cuts near che
Tropick of Capricorn.
BuE in EhIS LaLECF OCCUES a DHNCuLEY, noc well tO
be accbunced for, which 15, wns chis Charise oF
ehe Monsoons, LSuld De any HICTC M ThiS Ocean
chan in che Came Lacirudes in the Fthiopick, Wvhere
there is nochins mOre CCMaM La a ca
Wind all the YCar.
Tis Ukerile rers hard co concerre Whs elle e-
mits of che Trade Wind Mould be fixt abour the
Thirrierh Degrecot Laricude all round che Globe:
and thac cher Mouid (0 seldom FranSgrelS Ox Fal
Mort et chole Bounds; as allo thar in che indian
Sea, ontr che Norchen pare Mould be subject 10
the changaore Monsoons, and in ThC SOMHCLM MCrC
hould De a constant South P afF.
Iluis Accouneof Wind is trom che LCatne
eain FTallerS Dilcourse on this Subjell. Lhosopis
Frans. N. 183
E F F. OPO is a crooked Tron, Fastened in M
char che Thumb Rickins in the Angle P, thC rest
oF the Fingers may acract the Learer L, and se
force che Plus PP P uperards. Buc the use oF che
Cuerarure is, Thac ehe one end O mixhe be ap
plicd coche Shouider, if ic be thoughe tc t0 aim aE
any mark
TT, is a Rectangle oF Tron, encompassins che
LCarer L L, and che Tron O PO, 1o keepFhe Le2
vex in chac Posture which che presene Scheme holds
Forch; For ocherwise, the Dlug F E P vouid be
chrust out tar aWay, whilst e inerude che Air inco
the GIobC A A.
TI, is an FIliprick hole in thC APPeK parE OE che
Globe verr wvell Cue ich a Valre, openinq in-
vardlr, whose use is ro sire libeter ot Inspection
and ot amiendins whac is amils. For the Valve
mas be dramn chroush the hole, by realon oF ils
Esliprick Figure.
SS, is a metalline Plate eransrerAy placed above
ehe hole PI, and pertorated wo rrantmit the Screw V
by irtiose help etie Valre Murrins, ehe hole LI is
sustained, and is applied clolety ro che hole.
C, is an hole in che inferior pare oF che Tube
CC, by Which che Airenters into the Tube, whils
che Plus D is brouxhe r0 rhe lowest parr oE che
Tube
The Air is chrust into ehis Fingine after this man.
ner: The crooked end oFthe Plus DD is pressed
uxon wich the Foor, thac ic mayne sir from che
Ground; and che Fingine being lifred upvard rit
the upper pare ot che Plus befound belo thehole
Q; Then che Air cnerins chroush che forelaid hole,
doch wholly Aill che TubeCC
Then che Fnoine beins Torcibly depressd, che
Air concained in the Tube CC, opens the ValveF
and isthrust intoche Clobe A A; Whence it CannOT
return, because che Valres preleney Aop the pal
sage; and chus by iterared turns, we may condense
chie Air in che Globe, uneil che force ot its Sprins
cannoc be overcome by our Screngeh.
Nou ro discharge che Rir, (0 condensed, the
Plus D D is irholly co be dravn out, and a Bullet
ot Lead to be pur into rhe borom of the Tube CC
then by means of the Lcaver I. L L, the PIUS FFF
is ro be impelled upvard, as betoremention d, and
then che Exrremiey ot che Tron WVrre opens che
Valre B, and che Air Breakins OuF ThereFrOM, ex-
Pels che Leaden Bullet chroust che Tube C C wirhi
creac riolence.
Noce, Thacbetore che Plus D D is apain pric in-
eo che Tube C C for che compresion of che Air,
aboue half an Ounce of Wacer is to be poured into
che forelaid Tube. For by chis means no Air ac aII
can elcape out by the Plus; and moreorer, that
Wracer Eillins exactly che upper part ot che Tube
CC, ill cause that the Wwhole compressed Air
will be incruded wichin che Carier A A, and (0 che
Condensation will be pertected much looner than
it ac erery turn parr of the compressed Air did re-
main belor che Valre F. Scerhe Fisure (ollol.
1nb
PBanomenom A Ihe Mo
WVIND GVN. OF chis Instrumene MeC alC
Tereral Descriptions extant, bur che tollowins ol
Ar Papins is in all respects the best. (Sec Conri-
nuation oLMIr. BoylS Physico Mechanteal LPments
VarE 2. Tconi(. 2. F1G. 4.)
AA, is a Copper Clobe, hollo wichin; BB, l
a Tube, Fastned ro rhar GlobC. Pis a Valve open-
Ins inwaralr, and Muctins che Globe BB; Cr i5
che Sprins depressins che forelaid ratte. L Is
a Onomch attixed ro che Globe A A, aet LIIdKIMS
TaAt ehe Sprins 6.
CC, is a Tube ofTron, Fastned to che Tube BB
and the Clobe A A. DD is a Plus exactis adap
ced ro chetorelaid Tube. PP L is anocher l8,
Acced also eo che Tube BB wich an Tron WVyre,
reachins almost ro che Valre F. R is che Protu,
berance oF che Tube CC, Lomewhat hollowed 2
bore ro receire che end oF thC TTONL L; and L 1
is a crooked Tron, moreable aboue LHC LALCIMIE
i ei ottal te tone a tatet 10 h uB che llat