258 Southern Historical Society Papers.
clay and is still there. Will send out heavy reconnoisances today in all directions from that point. The General desires that you keep a good lookout upon Leesburg to see if this movement drives them away. Perhaps a slight demonstration on your part would have the effect to move them."
THE BATTLE CAME.
This order, although not so intended, brought on the battle of Ball's Bluff.
When armies are on the qui vive for a fight, slight and unforseen causes often bring it on. It was Pettigrew's march in search of shoes, and his collision with Buford's cavalry, that precipitated the battle of Gettysburg, and defeated Lee's plan of concentration at Cashtown. So Stone's "demonstration" at Ball's Bluff deranged McClellan's plan for a general advance of his army.
On the night of the 2Oth, Stone sent out a scouting party to cross at Harrison's Island and explore the country in the direction of Leesburg. Returning with the report that a rebel camp of about thirty tents was found in the edge of a woods near the town, Stone directed Colonel Devens, with four companies of his regiment the Fifteenth Massachusetts to destroy the camp, reconnoitre, and either to recross the river or remain, if he thought he could safely do so.
Devens decided to hold on, and sent back to his brigade com- mander (Colonel Baker) for reinforcements. The latter consulted Stone, his division commander, and was given permission either to withdraw Devens or send him reinforcements. Eager to add the laurels of a hero to his fame as a senatorial orator, Baker promptly availed himself of the discretion allowed him, and sent word to Devens that he would come in person with his historic brigade to his support; and this he did as rapidly as the boats at his disposal \vould permit.
The rebel camp" was an illusion, the scouts having been de- ceived by a line of trees, which presented, in an uncertain light, somewhat the appearance of tents. But about 7 o'clock in the morning of the 2ist, Colonel Devens encountered a very real and a very insuperable obstacle in the person of Captain Duff, with forty men of the Seventeenth Mississippi, who had been picketing the river near Smart's mill, a short distance above the Bluff. Devens undertook their capture, by attacking with Philbrick's
