Mr. EZEKIEL BIRDSEYE, of Cornwall, Conn., a gentleman well known and highly respected in Litchfield county, who resided a number of years in South Carolina, gives the following testimony:—

"A man by the name of Waters was killed by his slaves, in Newberry District. Three of them were tried before the court, and ordered to be burnt. I was but a few miles distant at the time, and conversed with those who saw the execution. The slaves were tied to a stake, and pitch pine wood piled around them, to which the fire was communicated. Thousands were collected to witness this barbarous transaction. Other executions of this kind took place in various parts of the state, during my residence in it, from 1818 to 1824. About three or four years ago, a young negro was burnt in Abbeville District, for an attempt at rape."

In the fall of 1837, there was a rumor of a projected insurrection on the Red River, in Louisiana. The citizens forthwith seized and hanged NINE SLAVES, AND THREE FREE COLORED MEN, WITHOUT TRIAL. A few months previous to that transaction, a slave was seized in a similar manner and publicly burned to death, in Arkansas. In July, 1835, the citizens of Madison county, Mississippi, were alarmed by rumors of an insurrection arrested five slaves and publicly executed them without trial.

The Missouri Republican, April 30, 1838, gives the particulars of the deliberate murder of a negro man named Tom, a cook on board the steamboat Pawnee, on her passage up from New Orleans to St. Louis. Some of the facts stated by the Republican are the following:

"On Friday night, about 10 o'clock, a deaf and dumb German girl was found in the storeroom with Tom. The door was locked, and at first Tom denied she was there. The girl's father came. Tom unlocked the door, and the girl was found secreted in the room behind a barrel. The next morning some four or five of the deck passengers spoke to the captain about it. This was about breakfast time. Immediately after he left the deck, a number of the deck passengers rushed upon the negro, bound his arms behind his back and carried him forward to the bow of the boat. A voice cried out 'throw him overboard,' and was responded to from every quarter of the deck—and in an instant he was plunged into the river. The whole scene of tying him and throwing him overboard scarcely occupied ten minutes, and was so precipitate that the officers were unable to interfere in time to save him.

"There were between two hundred and fifty and three hundred passengers on board."

The whole process of seizing Tom, dragging him upon deck, binding his arms behind his back, forcing him to the bow of the boat, and throwing him overboard, occupied, the editor informs us, about TEN MINUTES, and of the two hundred and fifty or three hundred deck passengers, with perhaps as many cabin passengers, it does not appear that a single individual raised a finger to prevent this deliberate murder; and the cry "throw him overboard," was it seems, "responded to from every quarter of the deck!"

Rev. JAMES A. THOME, of Augusta, Ky., son of Arthur Thome, Esq., till recently a slaveholder, published five years since the following description of a scene witnessed by him in New Orleans:

"In December of 1833, I landed at New Orleans, in the steamer W——. It was after night, dark and rainy. The passengers were called out of the cabin, from the enjoyment of a fire, which the cold, damp atmosphere rendered very comfortable, by a sudden shout of, 'catch him—catch him—catch the negro.' The cry was answered by a hundred voices—'Catch him—kill him,' and a rush from every direction toward our boat, indicated that the object of pursuit was near. The next moment we heard a man plunge into the river, a few paces above us. A crowd gathered upon the shore, with lamps and stones, and clubs, still crying, 'catch him—kill him—catch him—shoot him.'

"I soon discovered the poor man. He had taken refuge under the prow of another boat, and was standing in the water up to his waist. The angry vociferation of his pursuers, did not intimidate him. He defied them all. 'Don't you dare to come near me, or I will sink you in the river.' He was armed with despair. For a moment the mob was palsied by the energy of his threatenings. They were afraid to go to him with a skiff, but a number of them went on to the boat and tried to seize him. They threw a noose rope down repeatedly, that they might pull him up by the neck! but he planted his hand firmly against the boat and dashed the rope away with his arms. One of them took a long bar of wood, and leaning over the prow, endeavored to strike him on the head, The blow must have shattered the skull, but it did not reach low enough. The monster raised up the heavy club again and said, 'Come out now, you old rascal, or die.' 'Strike,' said the negro; 'strike—shiver my brains now; I want to die;' and down went the club again, without striking. This was repeated several times. The mob, seeing their efforts fruitless, became more enraged and threatened to stone him, if he did not surrender himself into their hands. He again defied them, and declared that he would drown himself in the river, before they should have him. They then resorted to persuasion, and promised they would not hurt him. 'I'll die first;' was his only reply. Even the furious mob was awed, and for a while stood dumb.