Alexandria Daily Advertiser

NEW-YORK, July 7.

A gentleman at New Orleans, who is in a situation which gives him an opportunity of being well acquainted with the commercial and political interests of that province, gives to his friend in this city in letter dated the 4th June, the following interesting information:

"You know I presume that we claim Mobile as a part of the Cession from France. Spain objects to this; and being in power there, exact from us the ancient duties. Congress however have passed an act for this part of the province, as if they were without apprehension that their right to do so would be disputed. The governor-general, who resides at Pensacola, has seen this act, and it has excited much alarm, and ill temper. I saw last night a translation of his letter to Governor Claiborne on the subject, to be forwarded to the president of the United States, in which he assumes a bold tone, and says he views our conduct as a serious violation of the treaty; and of the harmony that ought to subsist between the two governments. He adds that he feels it his duty to resist with force of arms every such violation, he then endeavours to shew by a variety of arguments, that we have no right to that country, and hopes the president will be satisfied on due consideration that he (the governor) is correct in his opinion, and that the president will take measures to abandon a claim so unfounded: but if not, and if the American government persist in the exercise of legislative and executive controul over that country, however painful the alternative he shall use the force entrusted to him to repel with arms every such unjust encroachment.

"How this disagreeable business will end, I know not. On the truth of the facts you may place the most implicit confidence. The translation of the letter is attested by the interpreter to the government; and I expect will soon be published in your papers from the proper authority."