Palatines, pietists, and medicine -- From First Bull Run to hospital command -- The Kansas plains -- A career in medical science begins -- Return to the field -- Debut on the national stage -- Exiled to California -- Dean of American bacteriology -- Early years (1838/1870) -- Middle years (1870/1893) -- Later years (1893/1915) -- Yellow fever investigations -- Immunology and cholera in New York City -- Surgeon General of the Army -- War with Spain -- Empire and insurrection -- Yellow fever loses its mystique -- A proper progressive in Washington -- Epilogue.