From tho ‘Detroit Free Prea».THE NEW PABTY.Evidehce of 8. concerted movement to form-a/great nortlierh sections) party, upon the single idea of.hostility to the South, is palpable. Not one, oc two, or a half a dozen Slates are engaged in it, but the -movement is .co-operative, embracing the nnti-elavery element in every ! oon-slaveholding State.. The convention iit Jackson, in This State, a few days-since, was am act in the grand progamme.' In; Ohio, a similar eon-.- vention was held. :■ In New York, the.disaffected and fanatical of all sorts and colors are to. assembe in : Saratoga within a few days, with a few. to thorough -fusion. In' Connecticut lan.'amalgamation was made at the last State election,- and we have seen some of its fruits in the acts of the legislature ju8t.’adjourned,7 . In iViermont the,- .caldron is boiling, and in Maine it bas boiled. In Massachusetts a preliminary.meeting lias been lield, but the spirit of Daniel Webster • seems likely lb-animate-enough of the people to arrest the diabolical Work. In Pehn-a: 1 vania the spiisit .of evil'.is,abroad; and in the'West~^m-Indiana^II timkjs, and Wisconsin—lb* enemies of the Union are gathering logeiher t heir [scattered fragments.• Tiie new party will: not ibe despisable in numbers. Sd sectional .has the .whig party itself become—to such an-extent; is it abp-■ Jitioiiized~so potent hasheen the counsels of Wm. H. tie ward and the New York Tribune—that the organzation of a great northern anti-slavery party is comparatively easy- work. Conservative whigs may now: see the rock upon which their party has split. They now witness the disaster-on* effect of a cause iwhich they might have controlled. The predictibhii- of democratic statesmen aTe undergoing realization, tio long as Webster and-©lay lived-—so long as t heir patriotic voices could be beard : in the national councils^— the party of which they were the great leaders ciu Id not'dwindle into sectionalism *, but -when Webster departed, not. one national, .patriotic whig v as left in the North whose pbwer was great enough to-stay the tiderof fanaticism which was - s weepi h g - a way the whig'fir gn n i zat ion.But while,-Trora ' these causes, the new party will makesevereinroads upon the whig -rank vwe rejoice to know that these ranks eminot be - entirely swallowed up— that riotwithstandinfg^-defeetion and deser-tion hay'thinned tfteffij'th'ere are yet left mafiy 'brave andriolffb soldiers whoeannot: be w-duced trorVi their fealty to the Union —who cannot be induced to join in the ignoble song of those who1 would'strrke down the stars and !8trip'es~ 1,;-' •'Deitroy it ye who win I Deep «iik i; in the wnves.” ■ 1 We have evidence of This- in ourowii. city and our own State, in the thousands of whigs who utterly'-repudiate the “republican” party,and spit upon its platform. And . we have; evidence: of i t’ihotner: States,':es-pecially in Massachusetts,' where, as.we.have remarked, the spirit’ of Daniel Webster yet seems.to animate some pailion of the |eo* pie. - There thc«.first attempt'«t fusion;was »1k i-ti vc; s A coa lit ion meet i ng was'called ■t Boston, which,'according toithe Courier!, of that city', consisted of five whigs,-two professed deinocriiis, and about twenty ;free-soilers. Of the whigH.one was called to'the. chaiivtwo declared them selves hp|x*ed toany; project of ‘Tusioni” one. was lacciden tally present and gave ho opinion in the matter, and'one-alone was in -ifHvoridf. the pm-prosed mass’con v'entidn-of ad I who are opposed to the Nebraska bill. Nothing.was effected. Such 'was ' the result-' in Massachusetts. The example,, it is hoped, may be followed ib other northern.[States, and we believe-ittti be: followed, if; hot *bv the party: leaders, by Thousands of the masses of the whig party. • d Jr- -It may be that the demoCratiVparty will furnish some recruits to the1 sectional .party, but the number wilbbe. few,r andTheir departure from among uav will be a blessing rather than am injury'. •' In The crisis it is the dutybf patriotic men every where to “stand by!- [tbeir gmis.” If the cohorts dfdisiutibh shall'be-thbrbugh-ly beaten how,Jit will be long before they can1 again make head against the peace and tranquility of the country.