We have dates of Port-au-Prince to the 30th of June. The coronation of the Emperor Soulouque will take place very soon. Should no bishop arrive from Rome, the Emperor may create a native bishop. At the coronation, a general amnesty is expected for all political exiles, whose return to Hayti will be beneficial, for among them are men of wealth and intelligence. The affairs of the country have assumed a more pacific aspect. Immediately after the recent proclamation of the Emperor to the Dominicans, several agents were sent to different points on the frontier, to induce the enemy to enter on amicable relations. With a single exception, these missions were successful, and a number of Dominicans were expected in Port-au-Prince, for purposes of trade. The universal desire of the Haytian people, as well as of the government, is said to be that the dispute may be honorably settled. The Emperor, however, has not relinquished the idea of effecting a reannexation of the territory of Dominica to Hayti. The excessive issues of Treasury bonds and paper currency are proving prejudicial to the true interests of the country. The number of negroes brought to Cuba from the coast of Africa, during the past fourteen months, is 14,500. Very heavy rains have fallen in the interior and in the neighborhood of Manzanilla. SOUTH AMERICA. In the number of the _Christian Review_ for the July quarter is a very comprehensive, intelligible, and apparently perfectly correct survey of the condition of the South American states, to which we refer readers who would possess more minute information on the subject than can be embraced in this summary. The condition of PERU appears favorable for the maintenance of peace and order. The laws relating to elections, municipal governments, and other topics connected with the internal affairs of the country, have been considered by Congress, in accordance with the recommendation of the President. The election of Gen. Vivanca, the unsuccessful candidate for the Presidency, as representative in Congress, has been pronounced invalid, on account of his not holding the rights of citizenship. The change of ministry was received with satisfaction in all the departments, except Arequipa, which continued in a state of disturbance. The Governor's proclamation, requiring that all arms should be surrendered to the government, was the occasion of a fresh outbreak. Arequipa was thrown into a state of siege: the streets were filled with barricades: trenches were constructed at all the avenues to the city: and every obstacle opposed to the entrance of the troops which were encamped in the vicinity. Gen. Vivanca, whose party have caused these disturbances, is in prison at Lima; but whether he is personally implicated is uncertain.