flying column of 300 men, was detached to capture these forts. On the 12th May, Captain Cienfuegos, with sixty men, crossed the Bio-Bio and took the fort of El Nacimiento, after which two other forts nearer to Concepcion surrendered. The key of this line was the fortress ot Arauco, situate at its western extremity on the sea-coast. Freyre incorporated the detachment under Cienfuegos, and on the 26th May encamped on the River Carampague in the vicinity of this fort. The garrison, to the number of 200 men, sallied out to dispute the passage of the river. Freyre, with 50 grenadiers and 50 infantry mounted en croupe, crossed the river lower down, and fell upon the Royalists with such impetuosity, while the rest of his force attacked them in front, that he completely routed them, and the following day captured the fort, with eleven guns and large stores of ammunition, having lost eleven men drowned in the passage of the river, and one man wounded.
A militia captain named Diaz rallied the dispersed soldiery, and adding to them some 400 Indians, returned to the attack. Cienfuegos, who had been left in command, met this new foe on the open, but was completely beaten, and Arauco was reoccupied by the Royalists on the 3rd June, to be retaken by Freyre on the 17th July. O'Higgins then made a treaty with the Indians of Arauco, and so secured their neutrality.
Meantime an advanced post had been established in the vicinity of Talcahuano, and frequent skirmishes took place with the garrison, in which the Patriots had always the advantage. On the 22nd July the army advanced within cannon shot of the line of forts which crossed the peninsula, but was compelled by heavy rain to retire on the 24th. Ordoñez kept his main force within the line of his entrenchments, but officers of his raised bodies of guerillas in the rear of the Patriots, cutting off supplies, while detachments in boats made frequent descents on the coast line of Arauco, losing many men, but greatly harassing the Patriots.
