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BULLOCH HISTOLOGICAL No. 2 MODEL

SERIAL NUMBER: 567

c. 1880-1890

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Bulloch histo #2 understage In contrast to the Biological No 2, the Histological No 2, was simpler than the Histological Model. The limb, foot, and upright supports were of painted iron with the optical parts and stage of polished brass. Coarse focus by rack and pinion, fine by long lever screw. The plain stage had a wheel of apertures on its underside. The mirror was planoconcave, and could move up and down its supporting tailpiece, as well as rotate above the stage for illuminating opaque objects.  The stage was fixed, and not isolated by a saddle fitting.