Sentinel of the valley. [volume] (Woodstock, Va) 1841-1848, 1843-01-05
WOODSTOCK, VIRGINIA: JANUARY 5, 1s4s.


'lsetheflpa! lines. The ieyia,ions of ali
these hnes4from the same parallel Of lat
ifnde are determined by a multitude of
circumstances. among the principal Of
'"hschaie the position. direction, ard el-
evatlon Gf the continents a..,i islands, Tic
position ana :ie..t.,s vi ti,a4sea, and the
difcct:,n Of winds.
On comparing tie tso continents Of
Europe and America. it is found that
n'ases III :'te ~sahe iasiiasie have some
tunes mean difference If temperature
ains,lHing 10 III. or even in so.ne case.
to z Fanr. an:i some places in tie iwu
continents. WHICH have The SANE mean
| Temperature, s.iiier from 2 70 El3- in la
! titude. 'he principal cause If greater
intensity OF cold in corresponding la.i-
tatles Of North America and Europe. Is
the connection of North America with
The polar circle, by & large tract OF land.
some ii which is from eco 10 1000 fl.
IN height, md on tire otiser iea,lii, the Sc
Paratlon Of Europe from the arctic circle
byan ocean. The ocean .sas Il tendency
to preserve every where mean se,.p per.
AZURE, which it CON ;,,,,ncates Ia Ire COLI
tieuuus iaiid, so that it temDers the eli
mate, undertaking alike both heat arl.
cah!. IAc elevated! land, on the other
hand, rising to the c0:tier.!e.isns IL the
atu'es? here, becomes a great reservoir of
tee an't SHOW, arrests, cOndc!iSes, and
c"ngea's vapnf. and communicates its
cod to the a;;j ming counttY. Fer this
reason, Greenland. farming Il part Of a
continent which stretches nortsward to
the 50 deg of latitude, experiences ~
der the 61ta more rianrous climate Than
hap!and under the III parallel.
! BE. # laud be situated lie ,ween the
10th parallel ans, the eqaa,er,;: produces
lnlcss it be ct extreme height. exas,i;
ii,s opposite effect; for i. then warns tie
tracts cf land o. sen taat late. vcnc b.
tween i. and the polar circle. Ear TIE
surface being IA THIS case ,ex 9osesi 10 tie
vertical. or or nearly sertic 4 ~ravs "f the
sun. absotbs large quantity Of heat.
which il dIitt4 'es Dy fa":::;!0a .,.to the at
maspherr. Fer this reason, tie western
pat is ef tie cid cuu.,ncnt derive warmt Ii
from Africa. which, like an immense :a:-
( mace. distributes its beat 10 Arabia. t..
! Turkey in \ sia, an, to Eurn,7e. G,. ne
, contrary, the northeastern extremity CT
Asia experiences in 1.-The same latitude cx-
IRENE cold for it ats lands on the norr,
5.tweeH The Goth aadr70h parallel. whil7.
to the south it is separated from tire e.
quatr by the Indian ocean.
In consequence Of the more ea,ia, tenn
p~rature Of the waters ef the ocean. the
| climate ii islands and ef coasts differ,
essentially from hat Of the in,efiar ef
continents, the more maritime climates
being cha ctelised by 4nilA winters aud
mere temperate summers; for the sea
brceZcs moderate the cold oC winter as
we'll as ike heat ot SIMMER. Nhen.
therefore, we trace round iile globe those
+ belts in which tie mean annu.; tem,oora-
I tire is the same, we oiten find great DIFF.
F.! ierences II climate; Ter there are,aasu5 n
/ climates in w!lct the~seas0ns are Eeari Y
! eqlai'se:!, and crces3iCe Inmates, As they
have been termed, where the temperature
II wIntev and Summer is strong; v con-
trested. The whole 81 Europe. canpar-
ed with the eastern parts of America a nd
Asa, has On insui;r climate. The nor.
/ thern part of China ana The a ;ianiic re-
s;oa OF the Un!te,! States exhibit .eyces-
siye climates Ne find at New York
saws :fumboldt, the summer Of Rome
and the winter Of CopenAa 2en; at Qae-
, bee, Tie summer o. Paris and the wintc;
of Petersburg. At Pekin, in China
where the mean temperature Ct the year
is that ef tire coasts Of Brittany, the scor-
chin. heatA Of simmer are greater than
al Care. and the winters as rigorous as
at Upsala.
/; lines be drawn rouad the Globe tIro'
all those places which have the same win
ter temperature, they are found to devil
ate from the terrestrial parallels much
farther than the lines Of equal mean anna
al heat. The lines Q. equal winter in
Europe, fsr. example, are often curved 50
as to reach parallels al latitu,le.e and &c
deg. lrem seaci, other, whereas the iso-
thermal lines. or those passing through
places having The same mean annual tenn
pera'ure, dsIter only from a to 5 dec. -
LyaN.