An inquiry into the modus operendi of that class of medicines called sedatives: : submitted, as an inaugural dissertation, to the examination of the Rev. John Ewing, S.T.P. provost; the trustees & medical faculty, of the University of Pennsylvania, on the thirty-first of May 1800, for the degree of Doctor of Medicine. / By Robert Berkeley, of Virginia, member of the Philadelphia Medical and Chemical Societies. ; [Four lines from Horace]