J. Zentmayer, Philadelphia
Four examples of the United States Army Hospital Model Microscope
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Monocular: serial no. 975 |
Binocular: serial no. 720 |
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Monocular: serial no. 1867 |
Binocular: serial no. 3773 |
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The Army microscopes made after 1876 incorporate the swinging substage described in the Zentmayer patent of Aug. 15, 1876 |
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The United States Army Hospital Model microscope was originally designed in 1863 for use by the U.S.A. Medical Department during the Civil War. The following is an excerpt from the Army Surgeon's Manual for use of Medical Officers, Cadets, Chaplains, and Hospital Stewards by William Grace published in 1864 concerning the Army microscope: |

Biographical Sketch of Joseph Zentmayer