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Subjects
- Microscopy -- instrumentation[remove]24
- Microscopy3
- Optical Devices3
- Lenses2
- Optics and Photonics -- instrumentation2
- Army Medical Museum (U.S.)1
- Equipment and Supplies1
- Exhibitions as Topic1
- Eyeglasses1
- Federal Government1
- Hagen, Hermann August, 1817-1893.1
- Homeopathy1
- Juntz, Gottlieb.1
- Mental Disorders -- pathology1
- Nervous System Diseases -- pathology1
- Photomicrography1
- Sharp, William, 1805-1896.1
- Skin Diseases -- diagnosis1
- United States1