in American National Biography Online
January 1999; p ublished online February 2000 .
Reference Entry. Subjects: Social and Cultural History; Labour and Demographic Economics; Ophthalmology; Medical Microbiology and Virology; Pathology. 1023 words.
Gradle, Henry (17 August 1855–04 April 1911), ophthalmologist and early proponent of bacteriology, was born in Friedburg, a suburb of Frankfurt-am-Main, Prussia, the son of Bernard Gradle...