Ponola [sic] weekly register. (Ponola [sic], Miss.) 1843-1843, 1843-04-29

"o' iepio uuccu Oy IneSe forces, from
other kinds of matter, as in the original
process Of creation. al
Prior, however, 10 our tracing the !
first successive periods of creation, as
caused by a change in the position of.
the earth's axis toward the sun, we may
briefly advert TO certain minor influen-
ces upon climate, and therefore upon
animals and vegetables, arising FRONT
another motion Of the earth, of narrow-l
er limits and consequences. In thet
previous lectures oil this course, show
ed you from numerous observations EN-
bodied in DR.. Sherwood's Astro- Magnet
&c Almanac. for 1912. aud not vet pub
iished, and from memorial which was
presented TO Congress in 1899. .hat the
earth Is magnetised by the sun in the
direction ofits path from ttopic 10 tropic
and therefore in the angle OF the obi
guilty of the ecliptic or % deg 8mn.,
that therefore the magnetic poles. OF
vortices, are situated at the same dis
lance from terrestrial poles, that the
tropics are from the the equator, 60 deg
90 min and therefore in latitude Sc deg
80 minutes north and south, which is
-that. Of he arctic and antarctic circles
| also proved that these magnetic poles
or worthless, revolve in those circles
at the rate of SO deg 90 min. year,
and therefore perform an entire revolu-
Eton of $50 deg. in 666 years. Now in
thus revolving, they affect not only the
needle, causing it in every latitude TO
exhibit alternately an easterly and west
erly variation. but also affect the climate
in every latitude. The magnetic poles
or vortices, are the seats of maximum
cold; and the line of no variation which
runs between them, and which as |
have shown you, encircles the earth al
the angle of degrees % minutes with
the earth's axis of rotation, exhibits the
true angle Of the isos,hermal lines of
climate When the magnetic pole is
nearest TO any place, then is about the
time Of the greatest cold of that place;
and as it's at opposite points of its cir
Gle of revolution in half gifts period, or
in 333 years, the maximum changes of
climate take place in this time. Ancient
ly. we had a climate suited to our lat-
tude, and shall have it again, and we
are now actually acquiring it. 1t was
called the land of vines by the North
men who visited it, and it will again be
luxuriant in vegetation. For many
years past, our winters of New York
have been more severe than those Of
London, witch is situated in latitude 81
degrees 3 minutes, and therefore, more
than ten degrees father north. But for
a few years past, since the year 1891,
when tho line of no-varation passed
over our longitude, our winters have
been gradually, though IrrcgularIy,
growing milder, and those OF Europe
more severe; and they will continue
TO get worse there for abou, 800 years,
while ours will improve; The Baltic,
were, so as even to bear the transpor-
/ tation of cannon. will be so again. Ice
land may hc again unapproachabe for
ice. and sleighs and sledges, now I'M
nnown in England, may be familiar
there and forgotten here, until the mild
period come round to them, and becomes
again lost to us. The ice breaking up
in the northeast Of Europe, and cross
, inc over toward the southwest. may
cause our Springs to be tickle for some
years: but after this, our seasons will be
regularly graduated according 10 our
highly favorable climate. 1t is an in
, teresting fact, which may here INCL
IDENTIFY mention, that the tract of The
magnetic pole from east to west, is indi
5 Gated by the northern lights. which are
; occasoned by its action upon moist at
/ mosphere The north magnetic pole be
; ing negative force, and water being {
! negative body. they rcpei each other
4 and those diffusions Of light, which We
} see in the Aurora BoreaiiS, are the con
sequeni phenomena, for diffusions arr
I always the result of repulslons, as con
: fractions are Of attractions. Hence h'
5 greater quantity Of water in the south
! ern hemisphere than in the northern, 10
/, the south magnetic pole being positive
attracts the water which is negative
: while the north repels it, for you vii
: remember that forces of opposite demon
ri nations attract, while those of the SAME
r denomination repel. Hence while dr..
: atmosphere is essential TO an Auror
$ Australis, humid one is necessary (
e an Aurora Boreaiis. 1t is true, Cap
: tain Ross speaks Of an Aurora Australl
+ in lat "a or IS north. but was beyon
S the north magnetic pole, which is lat. 6
r deg. SO min. and although he was o
- the verge Of It's vortex. as was shew
!. by the great clip of his needle, il wa
e thus to the south Of him. and he accord
n dinghy saw the lights in that direction
Il I L