But a few weeks have gone, yet the change is wonderful already. The atmosphere is clearer and purer. The writer of this is living in a slave state, and is able to mark the changes better than those in places more remote from the influences of slavery. While a few months since no prominent men or class of men would venture to plant themselves openly on the platform of emancipation, now there is a great party forming in this state, (Delaware,) and at the coming elections in the autumn of this year, it will go into the canvass with Emancipation for its watch-word. The stigma which slavery has succeeded in attaching to the word "abolition" is already passing away, and it is no longer dangerous to one's reputation to be considered an emancipationist. What is true in a slave state will be as true everywhere in the land. The presidential word has brushed away a world of sophisms, and settled a thousand pleas against dealing with slavery; it has declared not only expedient, but possible, immediate emancipation. The abolition of slavery in the District of Columbia following so quickly upon the message of the President, and the adoption by Congress of its recommendation, have made its words facts and demonstrations. Slavery has been abolished with a word, and in a moment, over a whole district of country --here is a fact to make the ages sing over in this land. We do not even think of the fifteen hundred or so captives set free; they are as nothing, except as occasions for the bringing into existence the momentous and glorious fact that this government is on the side of freedom, and its strength will be given to it henceforth. It is difficult to measure the import of all this, even as it is difficult to foresee the sweep of a mighty current which has just begun to rush in a new channel; that it is destined to sweep slavery from this country, no one now can have a doubt. Hereafter the thinking on the subject of American Slavery will be only in one line--how shall it be done away? If we would have an understanding where a few weeks may advance us, we have only to remember what was the point of thought in relation to this matter. It was, how shall slavery be kept from extending itself. We were content to let it live if it did not subjugate other lands, but the events have crowded us far beyond that, we have gotten past a thought of it, no living man fears now, or even dreams of it, it has simply gone forever out of a sane man's mind. What an advance a year has made! We have been hurried past the place of argument against slavery. We are done with all that; the books and the pamphlets, the documents and the statistics are growing quickly obsolete, for they have done their work; we need not be careful of them for our future use. We shall not need them except as relics of a well fought field.