22 NOVEMBER 1845, Page 7

The Great Western steam-ship, which left New York on the

6th instead, arrived in the Mersey yesterday morning. It brings little additional nem, The Great Western steam-ship, which left New York on the 6th instead, arrived in the Mersey yesterday morning. It brings little additional nem,

but some modification of that received by previous arrivals. The Washing- ton Union had recently reasserted, in rather strong terms, the right of the United States to the whole of Oregon; and the journal is supposed to fore- shadow the message of Mr. Polk to the approaching Congress. The same paper continues to protest against the English and French intervention in the Rio de la Plata; and it contradicts the statement made, that the Go- vernment was about to send a special agent to Mexico for the purpose of demanding payment of the claims due. Those who circulate such reports, says the official organ, do not reflect upon the position of the United States in relation to Mexico.

The Washington correspondent of the Journal of Commerce says, that the rumour of a proposition for postponing the Oregon question for twenty years on certain conditions is not well grounded. A letter from Oregon, in the Platte Argus, published at Mobile, states that the Legislature had passed an act declaring that slavery shall not exist in that territory: owners of slaves were to be allowed two years for taking their slaves out of the territory; or in default, the slaves were to be free; free Negroes or Mulattos also to leave the state within two years. We have been favoured with the subjoined extract of a letter from a New York citizen to a gentleman in London. The writer is a " Whig,"— in America meaning " Conservative "; but a very well-informed, intelligent, and honest man.

"There is nothing new here. We have some fears that our President, in his message to Congress, the first week in December, will reiterate the language about Oregon, which gave such offence to Sir Robert Peel and Lord John Russell. If so, it will create an unhappy state of feeling between the two countries. Polk is a feeble man, and altogether unfit for his station. You will like him, however, for one thing—he is going to make war on the Tariff." The Albany Argus states, that the wheat crop of the United States for the present year was estimated at 125,000,000 bushels, and acknowledged as the largest ever 'raised in the country. This increase is attributed not less to the large additional amount of land under cultivation, than to the genial character of the summer. Michigan State alone has raised at least 7,000,000 bushels of wheat, and that of the best quality.