Washington, April 15th, 3 A. M.

Major Gen. Dix: The President still breathes, but is quite insensible, as he has been ever since he was shot. He evidently did not see the person who shot him, but was looking on the stage, as he was approached behind.

Mr. Seward has rallied, and it is hoped he may live.

Frederick Seward’s condition is very critical. The attendant who was present was stabbed through the lungs and is not expected to live. The wounds of Major Seward are not serious.

Investigation strongly indicates J. Wilkes Booth as the assassin of the President. Whether the same or a different person that attempted to murder Mr. Seward remains in doubt.

Justice Carter is engaged in taking the evidence. Every exertion has been made to prevent the escape of the murderer. His horse has been found on the road near Washington.

E. M. Stanton, Secretary of War.

Laura Keene says J. Wilkes Booth is the assassin. She also says that she saw him and knew him.

Senator Sumner is at the President’s bedside weeping like a child. His cabinet and Vice President Johnson are also with him.

At twenty minutes past seven o’clock Saturday morning, the President breathed his last—closing his eyes as if falling to sleep, and his countenance assuming an expression of perfect serenity. There were no indications of pain, and it was not known that he was dead until the gradually decreasing respiration ceased altogether.

Dr. Gurley then proceeded to the front parlor, where Mrs. Lincoln. Mrs. John Hay, the Private Secretary and others were waiting where he offered a prayer for the consolation of the family.

Immediately after the President’s death, a Cabinet meeting was called by Secretary Stanton, and held in the room in which the corpse lay.

Secretaries Stanton, Welles, and Usher; Postmaster General Dennison; and Attorney-General Speed were present.

On Saturday, 12 m. Andrew Johnson was sworn into office as President of the United States by Chief Justice Chase. Secretary McCullough and Attorney General Speed and others were present. He remarked: “The duties are mine. I will perform them trusting in God.”

The President’s body was removed from the private residence opposite Ford’s theatre, to the Executive Mansion, at half past 9 o’clock in a hearse, and wrapped in flags. A dense crowd accompanied the remains to the house, where a military guard excluded the crowd, allowing none but the persons of the household and friends of the President to enter. Senator Yates and Representative Farnsworth were among the number admitted.

It is believed that the assassins of the President and of Secretary Seward are attempting to escape to Canada.