An inaugural dissertation on the effects of contagion upon the human body : Being an attempt to ascertain its mode of operation, with a few observations on the proper method of preventing and curing febrile contagious diseases. Submitted to the examination of the Rev. John Ewing, S.T.P. provost, the medical professors and trustees of the University of Pennsylvania, for the degree of Doctor of Medicine, on the 19th day of May 1794. By Lewis Condict, of New-Jersey, member of the American Medical Society at Philadelphia. [Two lines of Latin quotation from Celsus].