“An intelligent negro has just come in from Stafford County, and says his master returned this morning from Fredericksburg to his home, and told his wife, in this negro’s presence, that all the enemy’s troops had left Fredericksburg for Richmond and Yorktown, the last of them leaving on Saturday morning. This last has just been confirmed by another negro.

“Irvin McDowell, Major-General.”

Here are two negroes coming into camp with important information, both of whom General Halleck’s order would repel and drive back to bondage. And he may be instructed by the despatch of General Wool, just received, announcing our success at New Orleans, the news of which came by a “fugitive black.” The General adds: “The negro bringing the above reports that the Rebels have two iron-clad steamers nearly completed, and that it is believed that the Merrimac will be out to-morrow.” But all this information would be shut out by General Halleck. Can absurdity be more complete?

But worse than inconsistency or absurdity is its positive unconstitutionality. What right, under the Constitution, has this General to set himself up as judge in cases of human freedom? Where does he find his power? By whom has he been invested with this attribute? It is the boast of the National Constitution that all are “persons.” The National Constitution so regards everybody, and surrounds everybody with the safeguards of “persons,” even to the extent of declaring that “no person shall be deprived of liberty without due process of law.” And yet the army is gravely told to treat certain persons as slaves. Of course this cannot be without sitting in judgment most summarily on human freedom. How does the General know that they are slaves? On what evidence? Because they are black? Why may they not be free blacks? General Halleck would reverse the true presumption. He assumes Slavery, when he ought to assume Freedom. In the eye of the Constitution all are freemen until proved to be slaves, no matter of what color. The only question to be asked concerns loyalty. Are you loyal or rebel? If loyal, then welcome to the hospitality and protection of our camps. If rebel, then surrender to our arms. Be these the inquiries, with this rule, and the Union we seek to restore will not be indefinitely postponed.

But worse than its unconstitutionality is the inhumanity of this order, so shocking to the moral sense. This General, professing to fight the battle of the Constitution with the commission of the Republic, speaks of “the concealment of slaves” in the same class with “pillaging, marauding, and stealing.” I complain of this confusion of language, showing an insensibility to human rights. It is like those shameful advertisements which garnish Southern newspapers, where “the boy Tom” and “the girl Sally” are to be sold in the same lot with “horses, mules, cattle, and swine.” That such an order should be put forth in the name of our country may justly excite indignation.

On these various grounds I object to this order. In this criticism, which I make with sincere sorrow, I confine myself to the order. General Halleck is reputed an able officer, and I am sure he is an able lawyer. I do not intend to question his various capacity. But I do protest against his perverse violation of the Constitution to carry out a miserable and disgraceful proslavery policy; and I protest against his being allowed to degrade the character of our country. Sir, we are making history. Every victory adds something to that history; but such an order is worse for us than defeat. More than any defeat it will discredit us with posterity, and with the friends of liberal institutions in foreign lands. I have said that General Halleck is reputed an able officer; but, most perversely, he undoes with one hand what he does with the other. He undoes by his orders the good he does as a general. While professing to make war upon the Rebellion, he sustains its chief and most active power, and degrades his gallant army to be the constables of Slavery.

How often must I repeat that Slavery is the constant Rebel and universal enemy? It is traitor and belligerent together, and is always to be treated accordingly. Tenderness to Slavery now is practical disloyalty and practical alliance with the enemy.

Believe me, Sir, against the officers named to-day I have no personal unkindness. I should much prefer to speak in their praise; but I am in earnest. While I have the honor of a seat in the Senate, no success, no victory, shall be apology or shield for a general who insults human nature. From the midst of his triumphs I will drag him forward to receive the condemnation which such conduct deserves.

This movement ended in the Bill for Confiscation and Liberation, approved July 17th, which provided for the freedom of the slaves of Rebels. The enactments on this subject were embodied by the President in the first Proclamation of Emancipation, September 22, 1862.