Since the entire Army of the Potomac was in front of Petersburg, the Confederates took advantage of the opportunity to give Washington another scare, in the hope, also, of compelling Grant to withdraw a considerable body of troops from before Richmond. General Early was sent thither with 8,000 men by General Lee, with orders to attack the Federals in the valley. Sigel, whose great forte was that of retreating, fell back before the advance of Early, crossed the Potomac, and took position on Maryland Heights. Early moved up the Monocacy into Maryland, causing great alarm in Washington. The President called upon Pennsylvania, New York, and Massachusetts for militia with which to repel the invasion. They were placed under the command of General Lew Wallace, who was defeated at Monocacy Junction, July 9th. Early attacked Rockville, fourteen miles west of Washington, and Colonel Harry Gilmor, himself a citizen of Baltimore, cut the communications between that city and Philadelphia. He captured a railway train, and among his prisoners was General Franklin, who was wounded and on his way north. The loose watch kept over the captives allowed them to escape.

Early was in high feather over his success, and his cavalry appeared in front of Washington, July 11th, and exchanged shots with Fort Stevens; but a spirited attack drove them off, and they crossed the Potomac at Edward's Ferry, and passed to the western side of the Shenandoah. Early made his headquarters at Winchester and repelled several assaults upon him.

The Confederate leader had been so successful that he soon made a second raid. He crossed the Potomac, July 29th, and, entering Pennsylvania, reached Chambersburg, from which a ransom of $200,000 in gold was demanded. It not being forthcoming, the city was fired, and the invaders, after some hard fighting, succeeded in getting back to the southern shore of the Potomac.

SHERIDAN IN THE SHENANDOAH VALLEY.

These raids were so exasperating that Grant, who could not give them his personal attention, determined to put an effectual stop to them. The government united the departments of western Virginia, Washington, and the Susquehanna, and placed them under the charge of General Sheridan, who had 40,000 men at his disposal. Sheridan, whose force was three times as numerous as Early's, was anxious to move against him, and Grant finally gave his consent on the condition that he would desolate the Shenandoah Valley to that extent that nothing would be left to invite invasion.

GENERAL PHILIP H. SHERIDAN.

In the first encounter between Sheridan and Early near the Opequan, a small tributary of the Potomac, west of the Shenandoah, Early was routed and sent flying toward Winchester, with the loss of many prisoners and supplies. He was driven through the town, and his troops intrenched themselves on Fisher's Hill, near Strasburg. They were again attacked, on the 21st of September, and compelled to retreat further up the valley. Early received a reinforcement, and secured himself at Brown's Gap, in the Blue Ridge Mountains, where for the first time he was really safe.

This left Sheridan free to carry out the orders of Grant to devastate the valley, and he made thorough work of it. Nothing was spared, and the burning and destruction were so complete that his homely remark seemed justified when he said that no crow would dare attempt to fly across the region without taking his rations with him.