A reply to the observations of Lieut. Gen. Sir William Howe, on a pamphlet, entitled Letters to a nobleman : in which his misrepresentations are detected, and those letters are supported, by a variety of new matter and argument : to which is added, an appendix, containing, I. A letter to Sir William Howe upon his strictures on Mr. Galloway's private character -- II. A letter from Mr. Kirk to Sir William Howe, and his answer -- III. A letter from a committee to the president of the congress, on the state of the rebel army at Valley Forge, found among the papers of Henry Laurens, Esq.