Washington and his army.

The position at Valley Forge had been taken for the purposes of covering the country, protecting the magazines, and cutting off all supplies to Philadelphia. Although the intercourse of the inhabitants with that place could not be entirely prevented; the sufferings of the British army from the scarcity of fresh provisions and forage were considerable; and, as the spring opened, several expeditions were undertaken both to relieve their own wants, and to distress the army of the United States.

About the middle of March, Colonel Mawhood and Major Simcoe, who were detached into Jersey at the head of about twelve hundred men, landed at Salem, nearly opposite Reedy Island, and dispersed the small bodies of militia who were stationed in that part of the country.

General Washington had given early intelligence of this expedition to Governor Livingston; and had requested that he would immediately order out the militia to join Colonel Shreve, whose regiment was detached into Jersey; but the legislature had neglected to make provision for paying them; and the governor could not bring them into the field. Colonel Shreve, on his arrival at Haddonfield, the place at which they had been directed to assemble, found less than one hundred men. March 23.Colonel Ellis, their commanding officer, remarked, in a letter to the governor, that "without some standing force, little was to be expected from the militia, who, being alone not sufficient to prevent the incursions of the enemy, each one naturally consults his own safety, by not being found in arms."

Mawhood, of course, was unrestrained; and the devastation committed by his party was wantonly distressing. Its course of destruction was preceded by a summons to Colonel Hand, the commanding officer of the militia, to lay down his arms, which was accompanied with a threat of the consequences to result from his refusal. This threat was too faithfully executed.

After completing his forage, without molestation, Mawhood returned to Philadelphia. During the continuance of this incursion, which lasted six or seven days, not more than two hundred men could be collected to reinforce Colonel Shreve, who was consequently unable to effect any thing, and did not even march to the lower parts of Jersey, which were plundered without restraint.[1]

Not long after this incursion into Jersey, an enterprise was undertaken against General Lacy, who, with a small number of Pennsylvania militia, seldom amounting to six hundred, and sometimes not exceeding fifty, watched the roads leading to Philadelphia on the north side of the Schuylkill, and was generally posted within twenty miles of that town.

This expedition was entrusted to Colonel Abercrombie and Major Simcoe, who avoided all the posts Lacy had established for his security, and threw a body of troops into his rear before he discovered their approach. After a short resistance, he escaped with the loss of a few men killed, and all his baggage. His corps were entirely dispersed, and he was soon afterwards relieved by General Potter.

To maintain the command of the water as far as was practicable, congress had ordered impediments to be sunk in many of the rivers of common use, so as to obstruct the passage up them, and had constructed frigates, and other smaller vessels, to be employed above those impediments or elsewhere, as the occasion might require. Several of them had been commenced above Philadelphia, but were not completed when the British obtained the command of the river. General Washington then became apprehensive for their safety, and repeatedly expressed his desire that they should be sunk in such a manner as to be weighed with difficulty, should any attempt be made to raise them. The persons, however, who were entrusted by congress with this business, supposed it would be equally secure to put plugs in their bottoms, which might be drawn out on the approach of danger.

Against these vessels, and some stores collected at Bordentown, an expedition was planned which ended in their total destruction. General Dickenson was in the neighbourhood, but his force was too small to interrupt the execution of the design; and General Maxwell, who had been ordered to his assistance, was retarded in his march by a heavy rain, which did not obstruct the movement of the British, who passed up the river in vessels.

To cover the country more effectually on the north of the Schuylkill, to form an advance guard for the security of the main army, and to be in readiness to annoy the rear of the enemy, should he evacuate Philadelphia, an event believed to be in contemplation, General Washington detached the Marquis de Lafayette, with more than two thousand choice troops, to take post near the lines. As this corps formed a very valuable part of the army, the Commander-in-chief recommended in his instructions to General Lafayette the utmost attention to its safety; and, particularly, to avoid any permanent station, as a long continuance in one position would facilitate the execution of measures which might be concerted against him.

The Marquis crossed the Schuylkill and took post near Barren Hill church, eight or ten miles in front of the army. Attempt on Lafayette at Barren Hill.Immediate notice[2] of his arrival was given to Sir William Howe, who reconnoitred his position, and formed a plan to surprise and cut him off.

On the night of the 19th of May, General Grant with five thousand select troops, took the road which leads up the Delaware, and consequently diverges from Barren Hill. After marching some distance, he inclined to the left, and passing White Marsh, where several roads unite, took one leading to Plymouth meeting-house, the position he was directed to occupy, something more than a mile in the rear of the Marquis, between him and Valley Forge. May 20.He reached his point of destination rather before sunrise. Here the roads fork; the one leading to the camp of Lafayette, and the other to Matron's ford over the Schuylkill.

In the course of the night, General Gray, with a strong detachment, had advanced up the Schuylkill on its south side, along the ridge road, and taken post at a ford two or three miles in front of the right flank of Lafayette, while the residue of the army encamped on Chestnut hill.

Captain M'Clane, a vigilant partisan of great merit, was posted on the lines some distance in front of Barren Hill. In the course of the night, he fell in with two British grenadiers at Three Mile Run, who informed him of the movement made by Grant, and also that a large body of Germans was getting ready to march up the Schuylkill. Immediately conjecturing the object, M'Clane detached Captain Parr, with a company of riflemen across the country to Wanderers hill, with orders to harass and retard the column advancing up the Schuylkill, and hastened in person[3] to the camp of Lafayette. He arrived soon after daybreak, and communicated