I attended a supper-party given this evening by Mr. Frank Ward. The party was composed of citizens of the town, and officers of the navy and the merchant and whale ships in the harbour. In such a company as was here assembled, it was very difficult for me to realize that I was many thousand miles from, home, in a strange and foreign country. All the faces about me were American, and there was nothing in scene or sentiment to remind the guests of their remoteness from their native shores. Indeed, it seems to be a settled opinion, that California is henceforth to compose a part of the United States, and every American who is now here considers himself as treading upon his own soil, as much as if he were in one of the old thirteen revolutionary states. Song, sentiment, story, and wit heightened the enjoyments of the excellent entertainment of our host, and the jovial party did not separate until a late hour of the night. The guests, as may be supposed, were composed chiefly of gentlemen who had, from their pursuits, travelled over most of the world--had seen developments of human character under every variety of circumstance, and observed society, civilized, barbarous, and savage, in all its phases. Their conversation, therefore, when around the convivial board, possessed an unhackneyed freshness and raciness highly entertaining and instructive. On the 27th of September, the U.S. frigate Congress, Captain Livingston, bearing the broad pennant of Commodore Stockton, and the U.S. frigate Savannah, Captain Mervine, anchored in the harbour, having sailed from Monterey a day or two previously. The arrival of these large men-of-war produced an increase of the bustle in the small town. Blue coats and bright buttons (the naval uniform) became the prevailing costume at the billiard-rooms and other public places, and the plain dress of a private citizen might be regarded as a badge of distinction. On the 1st of October a courier arrived from the south with intelligence that the Californians at Los Angeles had organized a force and rebelled against the authority of the Americans--that they had also captured an American merchant-vessel lying at San Pedro, the port of the city of Angels, about thirty miles distant, and robbed it of a quantity of merchandise and specie. Whether this latter report was or was not true, I do not know--the former was correct. The frigate Savannah sailed for Los Angeles immediately.