The effort to secure the admission of Missouri with a slave constitution was not dead, but only sleeping. The bill was called up as a special order on the 24th of January, 1820. It occupied most of the time of the House from the 25th of January till the 19th of February, when a bill came from the Senate providing for the admission of Maine into the Union, but containing a rider authorizing the people of Missouri to adopt a State constitution, etc., without restrictions respecting slavery. The bill providing for the admission of Maine had passed the House during the early days of the session, and now returned to the House for concurrence in the rider. The debate on the bill and amendments had occupied much of the time of the Senate. In the Judiciary Committee on the 16th of February, the question was taken on amendments to the Maine admission bill, authorizing Missouri to form a State constitution, making no mention of slavery: and twenty-three votes were cast against restriction,--three from Northern States; twenty-one in favor of restriction,--but only two from the South. Mr. Thomas offered a resolution reaffirming the doctrine of the sixth article of the ordinance of 1787, and declaring its applicability to all that territory ceded to the United States by France, under the general designation of Louisiana, which lies north of thirty-six degrees and thirty minutes north latitude, etc. But on the following day he withdrew his original amendment, and submitted the following: "_And be it further enacted_, That in all the territory ceded by France to the United States, under the name of Louisiana, which lies north of thirty-six degrees thirty minutes, north latitude, excepting only such part thereof as is included within the limits of the State contemplated by this act, slavery and involuntary servitude, otherwise than in the punishment of crime whereof the party shall have been duly convicted, shall be and is hereby forever prohibited. Provided always, that any person escaping into the same, from where labor or service is lawfully claimed in any State or territory of the United States, such fugitive may be lawfully reclaimed and conveyed to the person claiming his or her labor or service as aforesaid." Mr. Trimble, of Ohio, offered a substitute, but it was rejected. The question recurring upon the passage of the amendment of Mr. Thomas, excluding slavery from all the territory north and west of Missouri, it was carried by a vote of 34 to 20.