[
580]
day
had been fixed upon for the beginning of the movement, but the new regiments came in so slowly that it was not deemed safe to break camp before the 15th.
Lieutenant-General Scott was too infirm to take command of the Army in the field.
He was afflicted with dropsy and vertigo; and for four months he had not been able to mount a horse.
He chose Brigadier-General Irvin McDowell for that responsible position.
That officer was a native of Ohio; a graduate
of the Military Academy at
West Point; an excellent soldier, who had seen service under
General Wool, in
Mexico, and was then in the prime of life.
He had been appointed
to the command of thy Department of Virginia, with his Headquarters at Arlington House, as we have observed;
1 and for several weeks he had been actively engaged in the reception of materials for, and the organization of,
what was afterward known as the Army of the Potomac.
This work was but imperfectly accomplished, when public opinion bore upon the authorities with such fearful pressure, that the Army, such as it was, was moved forward, with
McDowell as its chief.
2
The relative position of the forces now to be brought into contact, each