Mr. LEIB, from the committee, appointed on the 20th instant, to inquire into the expediency of providing by law for the exclusion of foreign armed vessels from the ports and harbors of the United States, made report; which was read, as follows: "That, in the opinion of this committee, such an interdiction is within the just and neutral rights of the United States, and, under other circumstances, would be highly expedient and proper. So long as a neutral nation shall confine itself to strict measures of impartiality, allowing no benefit to one belligerent, not stipulated by treaty, which it shall refuse to another, no cause whatever is afforded for exception or complaint. The right to admit an armed force into a neutral territory belongs exclusively to the neutral; and when not guarantied by treaty, as is oftentimes the case, such admission compromises the neutrality of the nation, which permits to one belligerent alone such an indulgence. "As a measure of safety as well as peace, it is incumbent upon the United States to carry into effect such a provision. So long as we are without a competent force to protect our jurisdiction from violation, and our citizens from outrage, and our flag from insult, so long ought no asylum to be given, but in distress, to the armed vessels of any nation. The committee will not bring into view the many injuries and insults which the United States have sustained from the hospitable grant of their ports and harbors to belligerents; nor the facility which has thereby been afforded to them to lay our commerce under contribution. It is sufficient to remark, that great injuries have been sustained, and that imperious duty requires arrangements at our hands to guard our country in future from similar aggressions. "The United States are, at this moment, under no obligation to withhold restraints, within their power, upon the admission of foreign armed vessels into their ports; but the committee are too strongly impressed with the propriety of avoiding any legislative interference at this time, which, by any possibility, might be construed into a desire to throw difficulties in the way of promised and pending negotiations. They are desirous that a fair experiment may be made to adjust our differences with the two belligerent nations, and that no provisions be interwoven in our laws which shall furnish a pretext for delay, or a refusal to yield to our just and honorable demands.