1. The World's Industrial and Cotton Centennial Exposition, New Orleans, La., 1884–'85. No. 6, Description of the microscopes and microscopical preparations, from the Army Medical Museum, Washington, D.C Author(s): United States. Army. Medical Department, author. Publication: [New Orleans?] : [publisher not identified], [1884?] Subject(s): Microscopy -- instrumentationExhibitions as TopicArmy Medical Museum (U.S.)