1. An oration on the causes of the difference, in point of frequency and force, between the endemic diseases of the United States of America, and those of the countries of Europe : delivered, by appointment, to the "Philadelphia Medical Society," on the fifth day of February, 1802 Author(s): Caldwell, Charles, 1772-1853 Publication: Philadelphia : Printed by T. and William Bradford ..., 1802 Subject(s): Disease OutbreaksUnited StatesEurope