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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 806933011:0520
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N FI
+ L L.
3. Ic doth nor ver appear by. Obserrarions,  Or Frearens, on which ther are supposed to rurn
Wrhether Mercury revoire round his AXIS, Or
nor and, consequens Whac che Lensih ot his
Daris; buc tis probable he hach such a Morion
25 Wvell 25 the octier Planeis, bur his Tear is
scarce equal t0 a Ouarter oE OurS. WVhatVa
rietr oF Scalons and Weather Mercury is subject
to, is uncertain; because the Inclinarion ot his
Axis, on which he rerolres abour himselt, 10
ihe Plane oE the Orbic, Which he describes roune
the Sun, IS UnkNOWH.
4. 20 an PyC placed in Mercury, and lootins
towards the Sum, the Solar Spors (iF aE any
time such chere arc) will appear to craverse his
Disk Lometimes in a Righe Linc, trom FaA 10
Nest; and Cometimes their Path will appear
Elliprical, bendins sometimes one ay, anc
Cometimes anocher. And the irhole Varierr ot
chis Appearance will be absolved in a YCar
Fime, in Which the Path Of che Solar SpOES Ni
appear ro betrvice Rectilinear: Bur indced rho
Pach oF chele Spors ill be almost continual
ly in a Rishe Line, Decause Mercurysnerex muc
declines From che Plane oF the SunSEqUaTOF.
5. Theother Fire Planers beins abore Met
cury, cheir Phaenomena rill De much the same 2
20 an Fre ac the Farth: So thar Venus and ous
Farch, wvhen in Opposition to the Sun, i
ine wich a full Orb, and consequener aFOrC
a Grear Lish to this Planet at NigHE. BUE the
Superior Planets ill nor attord him (o much
Listc a5 Ther do us.
6. Jhedus al he other Planets Llalls, and
the Phaenomena Ot Comets are toune the same
round.
On the Terrestrial Globes there are Wsua lIY 36
Meridians dran, one chroush ererr TenthDe-
OTCC OE the EGLaTOE, Ox throngh every TentM
Desree Ot Longitude.
The Dses os chis Circle, ate,
T. To set the Globesro any parricular Lacitude.
2. FoTew the Suns Or a Scars Declination.
Righe Ascension, Or Greacest Alricude, Cdc.
PROBE EM.
F0 find the Suns Meridian Alricude or Deprecion
at Nicht by the Globes.
Brine che Suns Place to the Meridian abore
the Florizon, For his Noon-Alticude; wetrich Will
ew theDegrees of ir, counced from ehe FTori
ZOn. FOF his Midniche Depresson Below Ehe
Norrh Poine oF che Forizon, vou must bririe
the opposire Point to che suns present Place,
as belore to the Meridian; and che Desrees
chere intercepred beroeen chac Poine and he
FTorizon, arc his Midnighe Depression.
MERIDIAN Linc, on a DYal, is 2 RighELine
arisins trom che incersection os che eridian o
the Place wwith the Plane of che DYaI. THis is
che Line ot 12 a Clock, and trom heucerhie D;
visien oF che Four. Lines begitis.
Fo diam a Frue Meridian Lihe upon at
Forizontal Plane
Firs, Cet a plain chick Board, ot 2 Foer
Nar in Mercury, and atter the lame manner, and Square, or more; chen upon one ot the ldse.
ill appear as thes uto us on the FarrM.
OF COrneIS, 25 near a5 may bC, tasten a Aron
MERIDIAN, is a great Circle passins chrough Tron Pin, about 10 OF +F Tuches lons, and makie
the Poles of the Tona, and Boch Zehith and Na-
dir, crossech che Fquinoctial ac Righe Angles.
and dirideth the Sphere inco ro equat PaFES,
one Last, che ocher West; and has iis Poles in
the Past and W est Poines oF che LTorizon. Tis
Calld Meridian, becaule wrten the Sum cometh
to the South Parr of chis Circle, ris then Meri
dies, Mid day, or Fich noon; and then the Sun
hath his sreacest Alcicude For thacDay, wrhich
cherefore is called che Meridian Alritude.
Thele Meridians are rarious, and change ac
cording co the L ongitudes oF Places; Cotharther
ic (0 Fast, chac ic Will nor Make, or rield in che
least: Je marters nor whecherir be perpendicular
DF nCL.
Sec chis Board horironcallr in vour Carden.
Wrich Farch orSand upon cheCround, or et seprtiere
abour3 a Clock; (the best Time is, When che
Sun is near che Solice, suxpole abourthe jortr
OF June) see wohere the Head oF chis Tron Dim
Cirtich must be Marp ac the cop) siveth its Stra-
dor upon che Board, mark châc Place: Then
takie a Wooden Ruler, Marp also at one end
and lay ic lo upon che Charp end of che TronPin
may besaid ro be insinite in NFumber, For thac aIL thar the Marp end of the Ruler may touch the
PlaCeS FrOm FastTO W CIEMaDEMICH SCreTaL Meri
Marh; chen carrrins it Ready, makce the Segmeri
dians: But there is (or sould bC) one Fix d, ot a Circle comards the Norh. Come again
atich is called the First Meridian.
MMERIDIAN On the Globe Or Sphere, IS rep
abour 3 a Cloek in the Atrernoon, and mark
Where the Stradon oE thecop ot rhe Tron Pim i5
sented by the Brazen Circle, in Which the Clobe in chat Segment aeain. Then draw à Linefrom
hanss and TUrnS. LIS airicea IHEO FOUT9OS,
Ox 360 Degrees, Beginnins at the Fquinoctial.
On ic, each as from the Equinoctial, on the
thosetruo MarkS, Which ill be Past and W eA
and che Perpendicular t0 char Linc will bc. 2
Meridian; and if rou halre char linc, che Per
Celestiat Globes, is connced the South and PTorth pendicular wilt so chrous the Centre, of che
Declination oF thC Sun OE STaES: And on che (Whole Circle: FOF that Segment is part ot the
Terrestial Globe, che Laticude oF Places Norch Basis oF a Conc, Whose Verrex is che Lop oF rHC
Or Souch. Wtich is all one wvith che Elevarion Tron Pin.
Or Heient O the. Pole abore thellorizon; and
Buc because che sun may be under a Cloue,
EhC COPLEMENEOF MHC LALIIHdC OI FOLCS HCISHE wrhen rou come ac 3 a Clock, rou may malie
is equal torhe Fleighe oF ihe Equinoctial above
he Llorizon
There are ervo Poines of this Circle, potich
are called che Poles of the Worid; and a Dia-
chree or tour more Sesmenes, and use rhem, ad
rou used chis.
This Mechod mould be very exact, is che
Sun mored as the Fixed Scars do; buc, because
metet continued from thence throush e Lentre the, Sun hath a prover Morion, 25 a Planer
ee crties ctotris rocalea ne paces itel gario choe mol le lope ieontore atoi vedie