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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 806933011:0477
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L
2. Buc chen this hach been corrected by
MIT. Normood, in his Seamans Practice; Woho, b7
most exactls meaturins che Distance of cvo
Places under ehe tame Meridian, and findine
also the Lacicudes oF chole rvo Places by mol
accurare Instrumenes and Obserrations, he found
phac ro a Degree oF a Crear Circle on the Parrto
there must bc 367200 Finglist Feer: And chis
hath been in a go0d meature contirmed by che
French Obserrations and Mensurations, Who
Cound 2 Degrec 10 contain 365184 Fcet. And
VeE MIr. Normood considerins chatche Strip S W ay
is really more than what is Found by ihe L05,
and allo tenomine thac ris becrer and Pater 10
trave the Reckonine ro be Comethins betore the
Strip, and probablr allo because ris a round
Number, cast amay che 7200 odd Fcet, and
Suppoled a Degree ro concain just 360000 Fcer
Fhen will a Minute oF a Degree contain 600c
such Feet; and that is ro be reckoned FOr the
erue Sea-Mile, 60 oF Which makce a Degree:
And since 5280 Feer are a Scature Mile, there
will bc 68,2 Tuch Miles in a Dcoree; and ot
the Tralian Miles, OF 5000 FCeL, 73 OF 2
Leaoues in 2 Degrec. And atter this wway ot
accountins, che whole Circumference oF Our
Olobe will bc 8640 Lcagues, Or 25920 Miles;
wotrich is 120 Leagnes, ox 360 Miles lels than
the French make it: And vec this is probably
sels chan che Fruch, and in Fact sels chan
NIT. NormoodS ACCOUHE.
Non eo appir all ehis i0 che Esimation oF 2
Strips W ay BY ihe LoS: HE ic be considered ehac This L.05. boara S ACCOUH Cuehe daitY aE NOOH
an haIF Minure is che 120ch ParE OF an FTOuT, tis (Wwhen il possible, let chere be an Obserration ot
plain che Distance berween Rnor and Knor in che Lacicude) ro be entred into che L05- b00k OL
The 205- line must Dc 2I(0 the F2Oth parE OF 2
Traverse book, ruled and columned just as che
Mtinure of a Deoree OF a Crear Circle on che L05-board is; From Whence it may berranscribed
Farrh; Ox TZOth parF OF a true Sea-Mile Or Mi-  into the Tournals, and hou much vay che Strip
nute, wrtrich is betore hhemed ro conrain 6000 hach sained in her Course, estimated daily.
Feet: And cheretore che Distance betveen the
Rnors must be50Foor; (For 50 mulciplied by
To meature Wwhecher che FTalFminure Cla(S
be true, or to make one upon Occasion, wwhen
120 produces 6000) because 25 30 Seconds is rou can ser athore, rou may ule this Merhod:
E0 an FTOUT, Or 3600 Seconds is r0 a Day; 10
Fasten amoderatels heavy Plummer or Weighe
i5 50Fcet 10 6000 Fcer. Wheretore as many ac che end oF a CmaIl Scrins, Which hans ux
rimes 50 Fcer 25 a Strip Pails in half a Minure,
(0 many Miles must Me 50 in an Hour, suppo-
Cins her to keep on ac che lame rate. T0 ErY
Wwhich, in lons Vorases 10 che East- Indies, _c.
2gainst a Wall by a sinall Pin Or Wvre, (90.
and set is Lenech trom che Pin Wwhere it hanes.
ro che Cenere oF che Plummet ox WeisHE, DC
just 39 Tnches J. Then dra, by che Lines
the Loc is heared everr ITour; bur in Porrer  hanging Aill, a Perpendicular on che WVaI bC-
Voyases cher concenc rhemselres wich doins ic hind, wich a Pencil or some such ching: And
buE every evo FTOurS; tho alvars che ofiner cakins che Plummet in vour FTand, move che
tis done, the Better.
And Tromhence plainty appears che PrOIS Fr
Pendulum trom che Perpendicular cither way 
Or 7 Inches, and chen ler ic svine freelr by
rOF OE havins buT 42 FCeE OF 7 Fathom berveen ehe WVaII; attex which cate roux Flal minure
Knor and Pnor, Wrhich is the common Dirision Olass, and curn ic ux just wrtien rou sec the
oF che L0g line ac Sea. Indced, beins sensible Scrins come righe asainst che Perpendicular om
their Dirisions are 100 Morr, ther lessen cheir che WaII, and then coune che Svings oF che
Falminute Clals proporrionably, a5 havins Pendulum trom irs paltins by che Perpendicular ;
rhac made oF only 24 Or 25 Seconds. Buc chis and il vour Classis our just when ie hach made
is nochins buc correctins one Blunder Or FrOF 30 Swinesir is ristc, elsenor; for chis Pendulum
by anorher; and sens plainty chat che Com- swines exactlr Seconds.
mon Sailors Will nor 80 out oE cheir way, cho
ther arc Cure cheriare in the WronS.
Commonly in the Sccerage, or Tome such con-
LOGARILIIMS, Which Caprain FTalley very
vell detines eobe che Indexes oF ehe Rarios oR
Numbers one co anocher, eere sirst invented by
venient Parr oF che Shrip, hanes up a Board my Lord Neper, 2 Scorch Baron; and alterwards
called the
compleared bY MP. LTenry Brises, Savilian PrO-
LOG Boara; Wtich is a Fable divided into Festor of Ceometry at Oxford
Fire Columns, and oughe r0 be ot che Follov.
ins Form, oc one lihe I.
2. Locarithms are a Series oF Arcitcial DTuH-
bers (invented for the Fase and Pxpedirion ot
Caleutacion) proccedins in an Arictmericat
Proxorcion,
HOL
et
2tBC
Accidents, ec.
N. N. NV. 2mo
(derare Cale