The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1848-06-28

Sd full tsegraphic report of the great speech OF
the Hon Johu C. Calhoun, in reply.
4th. The rich and stirring debate in the House OF
Representatives, in Washington ON Slavery, Genera
Cass. General Taylor, SC. &C
5th The opinion, In letter form, of the Hon Henry
Dodge the barnburnsrs candidate for the Vice Presi
dsncy.
We thus present TO our readers, in one paper, a
birds eye view of the latest movements of nearly
all the parties that agltate the Union. To the
politician It is of great value
The political matter crowds out our foreign
correspondence till another day.
Extension OF Slavery and the United states
Senate.
The speech which Senator Dix pronounced in
the United States Senate on Monday last, com
prehensive telegraphic report OF which we gave
exclusively, the next morning, is the beginning Of
a great and dangerous movement in THE country.
Mr.. Dix was to be followed In opposition, by Mr.
John c. Calhoun, brief report of whose speech
will be found in this days columns.
Senator Dix only follows up the movements of the
Utica Convention, in relation to the extension of
slavery, and the application of the Wllmot proviso
TO the new territory recently acquired in Oregon,
California and New Mexico. The principle con-
tanned in the Wilmot proviso, is but small and
unimporant matter in itself. 1t is rendered still
'ess important from its want of practical appica-
bility to the territory s Oregon, which gave cause
to the debate in question; but the movements of
the Landowners IN this State, the extraordinary let
ter OF Mr.. Martin Van Buren,, his nomination TO the
Presidency the organization of Northern party
OF any kind on anti-slavery ground, all present
general dark aspect, and possess certain peculiar
features, which may lead to events OF the greatest
magnitude and the deepest Importance to this
Union.
In travelling through one of the romantic valleys
OF the Tyrolean Alps, the traveller is shown the
lineament Of an immense peak in the noun
tisns, which had been placed by nature in
such tottering attitude, that the weight of
man, placed in certain position, would precipi-
tate II from its place, send il down the valley
below, and crush whole villages and ehadets IN
Its progress to the river, that at the bottom.
Such is the Wmot proviso in relation TO the Sum-
boring sensibilites of the free States of the North
in regard TO slavery in the South. Such has Mr.
Van Buren,, of Lindenwald become-the weight
that preclptaes the high rock over the happy vii
layers below, carrying ruin and desolatIon In Its
progress. Out of mere revenge towards the South
for the treatment he received at Baltimore four
years ago, Mr.. Van Buren, has boldly stepped on
the detached rock, the high precipice of the Will
mot proviso, and 1t is likely enough that his bare
weight will preclpltate II on the villagers below,
destroying everything in its way, and carrying
death and destruction, not only 10 parties, but pro-
badly TO our Institutions, to the Union itself, and
TO all that this country has loved for the last half
century.
The Wllmot provIso is a small affair; but
from the position which il has now as
sumhd, and the attempt TO organize the
sluinbering feelings OF tbs North on such a
ground, no stop can be put 10 Its progress to the
utmost point OF antl-savery sentiment, before it
ceases 10 progress onwiri The cry OF The barn
blrn-r- has been taken up in the Senate. Senator
d has followed IT, and he will be met by Mr.. Cal
houn and the South, and thus the whole question,
MT tn IN re Wlmot provIso but the great and III
m u question OF slavery, Will be thrown open to
the masses Of the North and South. and the result
no one can tell From the manner IN which Mr.. Van
Burens nomination al the North, and the ground
assumed there towards the South, have been re-
ceived, We should not be at all surprised to see all
the usual anii-slavery factions of the United States
united in his f4vor-fragments from all parties,
and parts OF all parties, forming a strength that
will not only demolish the prospects of General
Cass, but may soon menace deplorabe collision
between the North and The South and ultimately
discover the Union. Hitherto the South has been
too touchy on this question, and now the North
has taken up the sensibihles Of the South on the
the other side of the question What will be the
end no one Can tell.
In the meantime, what course should be pursued
by the friends of the Union-the friends of mode.
ratlon-the friends OF all the best interests of the
country! The democratic pauy-better known by
the term OF locofocos-organlzed by Mr. Van Blu
rem, under the mantle OF General Jackson's popu.
iarity, is about to be scattered to the winds OF
heaven, by the same hand that made it. General
Cass's prospects of election are diminishing every
day. His friends are paralyzed and thunder-struck
the violent supporters of Mr. Van Buren, are voci-
ferrous and noisy. In such state OF things there
is no safety, and no prospect Of stability for our in
stitutlons, or of the present arrangement between
the North and the South, but in the united support
of General Taylor. The radicals of all kinds have
broken loose from old party ties, and the conser-
vatlves and friends of this glorious Union, belong.
ing to all former parties, ought once 10 unite and
form compact force, for the preservation of mo-
deration In the government, by the election Of such
great man General Taylor This is our only
safety.
GRAND Mass MEETING OF THE BARvBuRygRs
Vast preparation. are making among the ultra de-
mocrats and btrnbumers, 10 get up a grand mass
meeting 10 respond 10 the nomination Of Martin
Van Buren,, who has been placed before the people
again a candidate for the Presidency. by the