To avoid the fire of some ships in the river, they attempted to pass through what appeared to be a point of woods, but was in reality a deep morass three miles in extent.

The delays occasioned by their detention in this morass, gave General Frazer full time to land some field pieces, and prepare for their reception; while General Nesbit fell into their rear, and cut off their return to the boats.

They advanced to the charge, but were soon repulsed; and finding it impracticable to return the way they came, were driven some miles through a deep swamp, which they traversed with inconceivable toil, and every degree of distress.

The British at length gave over the pursuit.
In this unfortunate enterprise, General Thompson and Colonel Irwin, with about two hundred men, were made prisoners; and from twenty to thirty were killed.

The loss of the British was inconsiderable.
{June 14.} The whole American force in Canada now amounted to about eight thousand men, not one half of whom were fit for duty.