Extracted from the
                Illustrated Price List of Microscopes for Sale
                by T. H. McAllister Manufacturing Optician, No. 49
                Nassau Street, New York 1876
              
                
                
              
               The Zentmayer Army Hospital
                Microscope
              
              
                Was designed and
                constructed for the U. S. A. Medical Department in
                1863, but it has since been very much improved. The
                Stand is sixteen inches high when arranged for use.
                Body, fine adjustment, and draw-tube are precisely
                the same as those of the "Intermediate". The bar is
                supported by one stout pillar. It has plane and
                concave mirrors, mounted similar to the former. The
                stage is made of a piece of plate glass,
                perforated in the centre, with brass mountings to
                receive the objects, and stage forceps; has also a
                stop for Maltwood's finder, and is kept down on the
                stage plate by a spring with an ivory pointed
                screw, similar to the revolving stage of the
                "Intermediate". The accessories are attached to a
                short tube below the stage, which may be removed
                when oblique illumination is required. Simplicity,
                steadiness, and convenience are the merits of this
                Microscope.
              
              
               The binocular
                arrangement differs from the former only in tbe
                mode of adjusting the eye-piece for the distance of
                the eyes of different persons, which is
                accomplished by a connecting bar.
              
              
                The Zentmayer Army
                Hospital Microscope
              
              
                Binocular Body; with
                4 Eye-pieces; 8/10 inch objective, 32 degrees
                angular aperture; 1/5 inch, 85 degrees angular
                aperture; Bull's-eye; Camera Lucida; Stage
                Micrometer, and Mahogany
                Case...............................................
                $185 00
              
              
                Monocular Body; with
                2 Eye-pieaes, and same accessories as
                above..................................... $136
                00
              
              
                The above is the
                manner in which the Stand is fitted out for the
                United States Goverment Hospitals; it may, however,
                be fitted out, if so desired, with any
                object-glasses or accessories from the
                lists.
              
 
                
              
                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. Below 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