A mail from Brazil arrive...
A mail from Braz%I arrived yesterday, with letters from Rio de Janeiro of the 18th June, aud from Pernainbuco of the 8th ult. The advices from the capital add nothiing of importance to what was previously known. At Per- nambuco the order of the EMPEROR for raising the blockade arrived on the 29th June, and the squadron set sail, as instructed, without delay for Rio (le Janeiro. This event wvas highly gratifying to the republican party at that place, who were thus left,' unawecd by the presence of the ships of ivar, to pursue their former machinations. The end to whichl they were directed was soon made evident, by a decree put forth by CARVALHO, the Governior, and head of that party, in which he promulgated the form of a Supreme Government for the iorthern provinces of Brazil, to which he invites them to accede. He had also announcedl hostilitics against Paraiba and Alagoes, and or(lered two vessels to be prepared for the blockade of those places. Finally, lie had declared his intention, when his plans were completed, to abolishl the trade in slaves. *Ye have no materials for forming an opinion respecting the means possessed by CARVALHO for supporting by his acts the high tone assuined in his public deeclarations. It ap-I pears probable, however, that he wouldl have a conitest to sustain for the ascendanicy in Pernambuco itself, before he could proceed to develop Ihis ulterior plans with regard to the otlher provinces to the northward.