On the 3rd, Mr. Thomas, of Illinois, offered an amendment, which was destined to play a very important part in the further development of the subject. It was the proposition to exclude slavery from the Louisiana territory above thirty-six degrees and thirty minutes, except within the limits of the proposed Commonwealth of Missouri. The Senate was not yet prepared, however, to consider this, the question before it, at the moment, being the question of procedure, the question whether the two subjects should be united in one bill. The Senate had only voted not to recommit the bill to the Judiciary committee with instructions, and it was thought necessary to take a formal vote upon the question of the connection of the two subjects as proposed by the committee before considering any further amendments to it. Mr. Thomas, therefore, withdrew his motion for the moment. [Sidenote: Mr. Pinkney's great argument against the power of Congress to lay restrictions on new Commonwealths not imposed by the Constitution on the original Commonwealths.] It was at this stage of the proceedings, when apparently there was nothing before the Senate but the question of the union of the two subjects, that Mr. Pinkney of Maryland made his brilliant and unanswerable argument upon the question of the powers of Congress in the premises. It differed logically very little from Mr. McLane's powerful analysis of the subject in the House, but it was elaborated and embellished as only Mr. Pinkney's beautiful diction could do it. The gist of the reasoning was, however, contained in a few sentences which ran as follows: "What, then, is the professed result? To admit a State into this Union. What is this Union? A confederation of States, equal {85} in sovereignty, capable of everything which the Constitution does not forbid, or authorize Congress to forbid. It is an equal union between parties equally sovereign. They were sovereign, independent of the Union. The object of the Union was common protection for the exercise of already existing sovereignty. The parties gave up a portion of that sovereignty to insure the remainder. As far as they gave it up by the common compact, they have ceased to be sovereign. The Union provides the means for securing the residue; and it is into _that_ Union that a new State is to come. By acceding to it, the new State is placed on the same footing with the original States. It accedes for the same purpose, that is, protection for its unsurrendered sovereignty. If it comes in shorn of its beams, crippled and disparaged beyond the original States, it is not into the original Union that it comes. For it is a different sort of Union. The first was a Union _inter pares_. This is a Union _inter disparates_, between giants and a dwarf, between power and feebleness, between full proportioned sovereignties and a miserable image of power--a thing which that very Union has shrunk and shrivelled from its just size