Unidentified photographer, n.d., Joseph B. Kendall, [Medical and Surgical History of the War of the Rebellion (1870-1888)], Photograph, mounted, NIH: U.S. National Library of Medicine (NLM), LL/66081

R.B. Bontecou, 1865, Martin Restle, [Medical and Surgical History of the War of the Rebellion (1870-1888)], Photograph, mounted, NIH: U.S. National Library of Medicine (NLM), LL/66079

Johann Zahn, 1685-1686, [Properties of light when passed through an opening], Book illustration, NIH: U.S. National Library of Medicine (NLM), LL/54734

R.B. Bontecou, 1865, Ludwig Kohn, [Medical and Surgical History of the War of the Rebellion (1870-1888)], Photograph, mounted, NIH: U.S. National Library of Medicine (NLM), LL/66076

R.B. Bontecou, 1865, Peter Strien, [Medical and Surgical History of the War of the Rebellion (1870-1888)], Photograph, mounted, NIH: U.S. National Library of Medicine (NLM), LL/66077

B. Alexander Randall & Henry Lee Morse (authors), 1887, [The Human Ear], [Photographic Illustrations of the Anatomy of the Human Ear, together with Pathologic Conditions of the Drum Membrane and Descriptive text], Albumen print, tipped-in, NIH: U.S. National Library of Medicine (NLM), LL/127999

Johann Zahn, 1685-1686, [Camera obscura ?], Book illustration, NIH: U.S. National Library of Medicine (NLM), LL/54735

B. Alexander Randall & Henry Lee Morse (authors), 1887, 8. Pneumatic Base of Skull - wet preparation. Cells extending far back of Mastoid Process. - 9. Curved Vertical Section through Mastoid, Tympanum, [Photographic Illustrations of the Anatomy of the Human Ear, together with Pathologic Conditions of the Drum Membrane and Descriptive text], Albumen print, tipped-in, NIH: U.S. National Library of Medicine (NLM), LL/127997

B. Alexander Randall & Henry Lee Morse (authors), 1887, [The Human Ear], [Photographic Illustrations of the Anatomy of the Human Ear, together with Pathologic Conditions of the Drum Membrane and Descriptive text], Albumen print, tipped-in, NIH: U.S. National Library of Medicine (NLM), LL/127998

Ger. Vandergucbt (engraver), 1733, [Medical illustrator using a camera obscura], Illustration, NIH: U.S. National Library of Medicine (NLM), LL/54744

Johann Zahn, 1685-1686, [Light projection apparatus], Book illustration, NIH: U.S. National Library of Medicine (NLM), LL/54736

R.B. Bontecou, 1865, James H. Stokes, [Medical and Surgical History of the War of the Rebellion (1870-1888)], Photograph, mounted, NIH: U.S. National Library of Medicine (NLM), LL/66078