RETURN JONATHAN MEIGS, jun., appointed a Senator by the General Assembly of the State of Ohio, to fill the vacancy occasioned by the resignation of JOHN SMITH, and, also, for six years ensuing the third day of March next, attended, and produced his credentials, which were read; and the oath prescribed by law was administered to him. TUESDAY, January 10. JAMES A. BAYARD, from the State of Delaware, attended. MONDAY, January 16 The credentials of MICHAEL LEIB, appointed a Senator by the Legislature of the State of Pennsylvania, to fill the vacancy occasioned by the resignation of SAMUEL MACLAY, were read, and ordered to lie on file. THURSDAY, January 19. MICHAEL LEIB, appointed a Senator by the Legislature of the State of Pennsylvania, to fill the vacancy occasioned by the resignation of the Honorable SAMUEL MACLAY, attended, and the oath prescribed by law was administered to him. TUESDAY, January 24. _Foreign Intercourse--the Two Millions Secret Appropriation--Florida the object._ The following Message was received from the PRESIDENT OF THE UNITED STATES: _To the Senate of the United States_: According to the resolution of the Senate, of the 17th instant, I now transmit them the information therein requested, respecting the execution of the act of Congress of February 21, 1806, appropriating two millions of dollars for defraying any extraordinary expenses attending the intercourse between the United States and foreign nations. JANUARY 24, 1809. TH. JEFFERSON. The Message and documents were read, and one thousand copies thereof ordered to be printed for the use of the two Houses of Congress. In compliance with the resolution of the Senate, so far as the same is not complied with by the report of the Secretary of the Treasury of the 20th instant, the Secretary of State respectfully reports, that neither the whole nor any portion of the two millions of dollars appropriated by the act of Congress of the 21st of February, 1806, "for defraying any extraordinary expenses attending the intercourse between the United States and foreign nations," was ever authorized or intended to be applied to the use of either France, Holland, or any country other than Spain; nor otherwise to be applied to Spain than by treaty with the Government thereof, and exclusively in consideration of a cession and delivery to the United States of the territory held by Spain, eastward of the river Mississippi. All which is respectfully submitted. JAMES MADISON. DEPARTMENT OF STATE, Jan. 21. MONDAY, January 30. The VICE PRESIDENT having retired, the Senate proceeded to the election of a President _pro tempore_, as the constitution provides; and the Hon. JOHN MILLEDGE was appointed. THURSDAY, February 2.