The Reviewer's insinuation, that Sir G. Prevost sent no instructions to General Brock for some weeks after he received intimation of the war, with the intention of leaving that officer to act on his own responsibility, cannot be passed over in silence. It has been already proved, by incontrovertible facts, that the contemptible motives thus attributed to the Commander of the forces, could not possibly have existed in his mind; and the attempt to impute to him a conduct so dishonorable ought therefore to be marked with the severest reprobation. No two persons could more sincerely respect and esteem each other than these gallant and high-minded individuals. Sir George Prevost had early evinced his opinion of General Brock's merits and talents, in a private communication to him of the 22d Jan. 1812, several months before the war; and the reply of General Brock to that communication, was sufficient evidence of the sentiments he entertained towards the Commander, under whom he expressed himself to be so desirous of serving. Indeed, the utmost confidence and cordiality prevailed between these officers, as is amply manifested in the correspondence before referred to; and wherever a difference of opinion did exist, General Brock never hesitated to yield to what he expressed and considered the superior knowledge and experience of the Commander in Chief. The conduct of Sir George Prevost in his communications with General Brock, after receiving intelligence of the war, was not attended with any of those consequences which the Reviewer has asserted. Upon this head General Brock's correspondence with the Commander of the forces is conclusive. The first letter from that officer, after the receipt of the intelligence of the war, is dated the 3d July, at Fort George; the extract from which, already given, is a convincing proof, that whatever might have been his intention in moving from York to Fort George, he was not restrained from the measure of attacking Fort Niagara by any deficiency of instructions from the Commander of the Forces.