Sir, a pamphlet, intitled "A guide for gentlemen studying medicine at the University of Edinburgh," with a signature supposed to be fictitious, having lately appeared, a report has been for some time industriously circulated here, stating that I am the author of it. I threrfore thought it incumbent on me, not only formally to disavow being either directly or indirectly concerned in that publication, but also to endeavour to ascertain the circumstances on which so txtraordinary a charge could be founded.