An l.v -rniiKr i loatiST Skntkncbo.-— A sla\e ii'uii.-,; Jerry, the property oi Col. Francis McCormiek,ofClarke county, Va., aaaa tried in that county ia>i araekon "a charge of plot ting and conspiring with slaves te rebel and in ike laaarreetioa. Tba court, composed of llvs asagfetrates, after basurfag able argamentß ii-'iii both afdee, aad duly considering the evi iienci-;u,,i armaments, (tfeaaimoualy found tbe prisoner guilty of plotting and couspiriug to I