The St. Charles herald. [volume] (Hahnville, La.) 1873-1993, 1885-10-10
THE EARTH.
Some Of the Changes That Have Occurred
in This Globe Of Ours.

mary rocks and the formation of the
coal strata tropical heat prevailed from
latitude thirty-fve degrees, to lati-
tude eighty degrees-to the polar
regions, that is. The temperature was
uniform over the whole earth. During
the first half of the secondary period,
that of iurasic rocks and chalk, the
climate remained the same; the same
plants and same animals are found all
over the globe. During the second
half of the period, however, the climate
began to cool somewhat, and decidu-
Gus trees made their appearances, though
tropical plants were still to be found in
England and Denmark. Even to the
middle of the tertiary period there
was equality of climate in all ATTITUDES.
but the temperature of Europe fell very
gradually, and it is certain that at the
end of the tertiary period there was no
ice on the globe, not even at the poles
or at the top of the highest mountains.
With the quaternary period great
change took place. The reindeer was
to be found in all parts of Europe, the
cold was excessive, and the great Swiss
glaciers extended to the south OF
France. The glacial epoch was in full
swing, and the uniformity of tempera-
ture formerly prevailing had been de-
stroyed. Then reflex action begins;
the glaciers, and with them the rein
deer and the mammoth, retreat as slow
ly as they advanced. At the furthest
point OF the glacial extension tne coiu
became so intense Inas sea VI ice GOV
cred half Russia, all PRUSSIA hanover
Holland, and part OF England
What, then, was the cause OF tnls
change from uni1ormlty 10 excessive
cold over so large Portloh OF tne
earth's surfacet Ana now IS IL Inat
the extent OF the cold region, AFTER
having reached lts maximum; grauual-
~ retreatedF we attriDuIe Cne cnange
TO the denecsion OF tne EARN AXIS KS
from the perpendlcular' anu ehen us
gradual return TO It's ola Posltlon. IN
the case OF a perpendicular axis the
climates WMl De nearly equaple all oyer
the globe; there Will De some atner-
ence IN dnerenC laVisuues, owing 70
the TACT shat the sun rays are only
comparatively small. inere Wouiu DC
no nlgnts long enough IN any part oi
the planet to leave tlme Tor the lorna
ton OF q large quantlty Oh ice. Con,
sequently, all we nave 10 90 10 account
tor the ages OF time wnen the climate,
as geology tells u.s. was the same az
over the world, is 10 imagine tne earlI
with Perpenolcuiar axis IN pace .
an axis az an angie WIN ene piahe u
the echptics as IL IS now o.
Inc angie to-uay IS 20 uegLees ~ - i.
mlnutes ana SECONDS. Dut tne onI
nese astronomer, roo Onung, Wn'
measureu .ne ans6e Inv years peiol'
Chrlst' made ~ zo;o4: ana supSedue on,
measurements Ina9e IN p. D. ~ .,o ooo, ~
ana OV' anu IN a. ~ Sol, 0zS' ooV, Ivy Ivy
1903 1907 1ovV anu lo9V, Ny celepra.e'
astronomers 1reeK' Ohl1ese, Araplal
and French give the angle as follow "
~ tne PesPecI,ve oaS o SS;aS' o 5S:51
ao ad' 1929, zo:So, a. 1921 90 1o'oz' zo.oi
zS'oe, zo.z''1 o. zo:zI:oo' a succeS ss..1
OF ngures IKE Cnese CONVEYS ~ l a..l
meaning 70 inc unnlatnehlaClcai nnllu
nuC 1IS meaning - clear; heserCheleSs
Inc ophquIty Oh Gne AXIS o mas allnlIlsne'
seeau,ly Aor Vuo lasI o,VVv years, an
Cne uiInl ", amounts ~ al 70
inlnuCes - seconus, snoWtng enaC y
ISnoency now y 'owa ao JUG PeLpenule
s unar a. Ine r@Ve NJ 40 secohus oteI
iVV years ms ne ans Una
Sne Poiar clrcle oso Jelly II
uoeI az Ire e ss's % 1000 metelsnon
Iougny, a'49o yarus-eveiy oenIuly
Ut IA LIZ ydruS every year, Ihe temper