WASHINGTON.MR. SEWARD'S VISIT TO CHINA.Washington, Jan. 25.—The Navy Department ban received dispatcher froin Admiral Rodgers, commanding the Asiatic lleet, dated Wusung, Iec. 12, reporting his return to that place with Secretary Seward and party from Pekin. The Admiral had several conferences with Minister Lowe re-ganling Chinese affairs, afcd also In regard tlt;* the proposed visit to Corea for the purpose of establishing a treaty with that country for the protection of our shipwrecked -••amen and it wiu arranged that iu May Lowe anti Rodgers should go to Corea and declare their desire and purpose, they having agreed that it might be well, after making known their purpose to the Coreangovernment, to come away, announcingtheir intention to return in a month for an answer, which would prevent difficulty between out people, avoid any appearance ff coercion, and leave their imagination to augment the dangers of a refusal. During the journey to and return from Pekin, the party were everywhere received with i courtesy. and it was remarked that 1 nowhere did they see any conduct other than that of amiability towards our )eople. InPekin, Prince Kuugand the officers of the Imperial Cabinet returner! the visit which had been made them. The interview was very agieeable, but conversation was eondned to generalities. Mr. Seward once or twice touched lightly upon serious matters but discussion was avoided by them. The admiral is convinced, from impressions be received from various sources, that the imperial government understands that it cannot cope with any great Western Power in war. and that it will avoid as far as it can any occasion for war.A DEMOCRATIC HANOI ET.