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BULLOCH STUDENT MICROSCOPE
DATES: 1870's
THE STUDENT (FINAL FORM) (c 1890-1891)
This simplest of all known Bulloch stands, which replaced his 'New Student' Model, and had coarse focusing by pushing or pulling the main optical tube.
This then was a much simpler and cheaper instrument at less than half the cost of the 'New Student' ($14 vs $30 with one eyepiece). The limb inclines between uprights arising directly from,and cast into, the foot.
Fine focus was by a fine screw tilting the stage. There was a wheel of apertures attached to the underside of the plain stage. The concave mirror could swing over the stage for illuminating opaque objects. It had a draw tube.