The following correspondence, which then took place, will show the position which I maintained:
"Boston, January 4, 1862.
"Marshal Keys, Boston.
"Sir:—I called twice to see you during this week, and in your absence had an understanding with your deputy that I was to surrender myself to you this morning, on the expiration of my parole, in time to be conveyed to Fort Warren, and I have accordingly done so.
"As you have not received any instructions from Washington in regard to the course to be pursued with me, I shall consider myself in your custody until you have had ample time to write to Washington and obtain a reply.
"I desire it, however, to be expressly understood that no further extension of my parole is asked for, or would be accepted at this time.
"It is my right and my wish to return to Baltimore, to resume the performance of my official and private duties.
Respectfully,
"Geo. Wm. Brown."
"Department of State,