Below Mile-square the rvCoimoiteriug party formed a junction with a select body of American light infantry, w^ho on the same morning had gone down to explore the ground on the rig)it ; and the two allied detachments then attacked and dispersed a strong patrol of Delancey's Refugees, and soon afterwards assaulted and drove across Kings Bridge the Chassem'S that occupied the Hessian outposts : -- pursuing the fugitives till they caiue within nmsket shot of Prince Charles' redoubt. This recomioisance established in favor of Kilmaine and of the elder Berthier,-- the latter of whom was afterwards a Marshal of France nnder Xapoleon, and Prince of Wagraiu and Keufchatel, -- reputations for partisan skill and intrepidity that led to their subsequent preferment.

A few days later occurred the grand reconnoisance, which was made on the 22d and 23d of July by the American and French commanders aud engineers supported by oOOO trooi)S of the two nations, for the purpose of examining with precision the British posts on New York Island between Fludson River and the Sound, -- and of cutting off, if possible, such of the enemy's corps as might be found upon the main. Young Andrew Corsa's intelligeuce and exact knowledge of the country aliout the British lines were such that his services were again earnestly sought for upon tiiis occasion; and during both these days ho was constantly on horseback, riding and conversing with Washington, Rochambeau. I.auzun, aud the other Generals of the combined army, while they passed through the lields of Jlorrisania, Fordham and Yonkers, halting from time to time as they moved along for the purpose of enabling the engineers to examine the grounds along llaerlem river and Spuytenduyvil creek. He used to relate tliat will n the allies, marching from the <\ist near the Bronx and passing over the hi'jU grounds around Morris.iPiiab.ousc came in sight of the enemy, the fire \\ Iiieh tlie British artillerj' opened upou them from the fortifications at Randall's Island