_Major-General S.V. Rensselaer to Major-General Brock_. Head Quarters, Lewiston, Sept. 17, 1812. I have the honor to acknowledge the receipt of your letter of yesterday evening; an extract of a letter addressed to you on the 15th instant by Captain Dyson, of the United States regiment of artillery; also a packet addressed to the Honorable Albert Gallatin, secretary of the treasury of the United States. Colonel Van Rensselaer will have the honor to deliver this communication, and I have entrusted him to solicit your permission for an interview with Captain Dyson, for the purpose of ascertaining, particularly, the condition of the prisoners of war under his charge, to the end that they may be relieved from Fort Niagara, if practicable; and if not, that I may, without delay, state their condition to the government, that they may receive from the proper department the earliest possible supplies. The women and children, and such other persons as have accompanied the detachment from Detroit, and ought to be here received, I will immediately receive at Fort Niagara, or such other convenient place as you may order them to be landed at. In a communication which I some time since had the honor of receiving from Lieut.-Colonel Myers, he assured me that it had been the constant study of the general officer commanding on this line to discountenance, by all means in his power, the warfare of sentinels; yet the frequent recurrence of this warfare within a few days past, would warrant the presumption that a different course has been adopted. I wish to be assured of this fact. _Major-General Brock to Major-General S.V. Rensselaer._ Head Quarters, Fort George, Sept. 17, 1812. I have the honor to acknowledge the receipt of your letter of this date. Captain Dyson has obtained my permission to cross on his parole to the United States; he has, however, requested to remain till to-morrow, to settle with the men of his detachment. He shall in the mean time have an interview with Colonel Van Rensselaer. Measures will be immediately taken to land the women and children at Fort Niagara.