It was with the above facts in mind that I started for Hampton Roads on May 20th. On the 22d the prisoners were transferred from the Clyde to the fortress. The quarter selected for Davis's prison was a casemate such as at that time, as well as at the present, is occupied by officers and their families. In fact, an officer with his family was moved out of the particular casemate in which Davis was placed. Any one who will take the trouble to visit Fortress Monroe can see the place still, and it certainly has not to-day a gloomy or forbidding appearance. The whole scene of the transfer I described in a long telegram which I sent to Mr. Stanton on the 22d. As it contains my fresh impressions, and has never before been published, I give it here in full:

From Fortress Monroe, 1 P.M., May 22, 1865.

Hon. E. M. Stanton, Secretary of War:

The two prisoners have just been placed in their respective casemates. The sentries are stationed both within and without their doors. The bars and locks are fastened, and the regular routine of their imprisonment has begun. At precisely one o'clock General Miles left with a tug and a guard from the garrison to go for Davis and Clay. At half past one the tug left the Clyde for the fortress. She landed at the engineers' wharf, and the procession, led by the cavalrymen of Colonel Pritchard's command, moved through the water battery on the east front of the fortress and entered by a postern leading from that battery. The cavalrymen were followed by General Miles, holding Davis by the right arm. Next came half a dozen soldiers, and then Colonel Pritchard with Clay, and last the guard which Miles took out with him. The arrangements were excellent and successful, and not a single curious spectator was any where in sight.

Davis bore himself with a haughty attitude. His face was somewhat flushed, but his features were composed and his step firm. In Clay's manner there was less expression of bravado and dramatic determination. Both were dressed in gray, with drab slouched hats. Davis wore a thin dark overcoat. His hair and beard are not so gray as has been reported, and he seems very much less worn and broken by anxiety and labor than Mr. Blair reported when he returned from Richmond last winter. The parties were not informed that they were not to be removed to the fortress until General Miles went on board the Clyde, but they had before learned generally what was their destination.

From his staff officers Davis parted yesterday, shedding tears at the separation. The same scene has just been renewed at his parting from Harrison, his private secretary, who left at one o'clock for Washington. In leaving his wife and children he exhibited no great emotion, though she was violently affected. He told her she would be allowed to see him in the course of the day. Clay took leave of his wife in private, and he was not seen by the officers. Both asked to see General Halleck, but he will not see them.

The arrangements for the security of the prisoners seem to me as complete as could be desired. Each one occupies the inner room of a casemate; the window is heavily barred. A sentry stands within, before each of the doors leading into the outer room. These doors are to be grated, but are now secured by bars fastened on the outside. Two other sentries stand outside of these doors. An officer is also constantly on duty in the outer room, whose duty is to see his prisoners every fifteen minutes. The outer door of all is locked on the outside, and the key is kept exclusively by the general officer of the guard. Two sentries are also stationed without that door, and a strong line of sentries cuts off all access to the vicinity of the casemates. Another line is stationed on the top of the parapet overhead, and a third line is posted across the moats on the counterscarps opposite the places of confinement. The casemates on each side and between these occupied by the prisoners are used as guard rooms, and soldiers are always there. A lamp is constantly kept burning in each of the rooms. The furniture of each prisoner is a hospital bed, with iron bedstead, chair and table, and a movable stool closet. A Bible is allowed to each. I have not given orders to have them placed in irons, as General Halleck seemed opposed to it, but General Miles is instructed to have fetters ready if he thinks them necessary. The prisoners are to be supplied with soldiers' rations, cooked by the guard. Their linen will be issued to them in the same way. I shall be back to-morrow morning.

C. A. Dana.

Before leaving Fortress Monroe, on May 22d, I made out for General Miles the order here printed in facsimile: