On Friday the 25th, the British vessels appeared off Nor-walk Islands, standing in for Cedar Point. Near this last place, situate on the easterly side of Saugatuck river, they anchored about four o'clock in the afternoon, soon after which the troops commenced landing. The debarkation was effected for the most part under cover of a thick fog. It was completed soon after nine o'clock. The enemy's forces thereupon moved forward about a mile, and formed by torch-light on Compo-Hill. They then marched up by the lane on the west side of Compo, until they approached the old Boston post-road called at that time the 'King's highway." Behind a stone wall at this place where the lane crossed the highway, Captain Disbrou of Compo was posted with about fifty of the neighboring inhabitants pursuant to orders sent by Brigadier-General Silliman of the Connecticut militia who, from Fairfield, had witnessed the enemy's descent. It was profoundly dark when the head of the British column ap- proached within ear-shot. Disbrou hailed the advance with-out drawing a word in answer. When a second challenge was given a voice that came out of the gloom said: ''Wait--we will give you an answer presently."--The American captain thereupon ordered his men to fire, and then retreated toward Fairfield. The Royal forces now continued their march northerly for about a mile and gained a road called the ''Cross Highway." This they followed easterly in the direction of Greenfield, pass-ing Haukanum, where now are seen the magnificent mansion and park of Morris Ketchum, Esquire, with parties upon their flanks, keeping the utmost silence and moving with military circumspection.--From time to time, during the night, they halted, making prisoners of such whigs as lived along the route and were found in arms, and of such as had become notorious for their zeal and activity.