As to the Lyttleton story, I shall dismiss it at once: it is not entitled to the sort of respectability which attaches to a case put hypothetically, nor to the honour of an "if;" and I must remind your correspondent that in a Junius question "general belief" is no evidence. Every story, however absurd, once asserted, is "generally believed," until some one (a rare and exceptional case) proves that it is not true--probably that it could not be true. The general belief, for example, that the "Letter to a Brigadier" was written by Junius, is not, so far as I know, supported by a tittle of evidence. It is all assertion and assumption, founded on the opinion of A., B., and C., as to "style," &c. Now, as some two dozen different persons have been proved, by like confident opinions, on like evidence, to be the writer of _Junius's Letters_, I may be excused when I acknowledge that the test is not with me quite conclusive. In respect, however, to this "Letter to a Brigadier," Mr. Britton and Sir David Brewster have proceeded somewhat further. Having, with others, come to the conclusion that Junius was the writer, Mr. Britton proceeds to show that Barré served in Canada under Wolfe, and was the very man, from circumstances, position, and feelings, who could, would, and did write that letter. Sir David endeavours to show that Macleane was in like circumstance, stimulated by like feelings, and was the veritable Simon; founding his argument mainly on the belief that Macleane was also serving there as surgeon of Otway's regiment. It has been shown in the _Athenæum_ that Macleane never was surgeon of Otway's regiment, and that in all probability he never was in Canada: in brief, that the memoir is a mistake from beginning to end. As all, however, that is urged by Sir David in favour of Macleane, as one who had served under Wolfe, may be thought to strengthen, to that extent, the claim of Barré, who certainly did so serve, and was severely wounded, let us look at the facts. Barré was wounded at the capture of Quebec; and, under date of Oct. 1759, Knox, in his _Historical Journal_, says, "Colonel Carlton and Major Barré retired to the southward for the recovery of their wounds." From his letter to Mr. Pitt (_Chath. Corr._), we find that Barré was at New York, April 28, 1760. He appears subsequently to have joined Amherst before Montreal; and on the capture of Montreal, on Sept. 8, 1760, he was appointed to convey the despatches to England, and arrived in London on the 5th October. These are facts public and unquestioned--admitted by Mr. Britton.