Items

• 

  James Brown Monocular Microscope

  The brass monocular microscope has a blackened finish and stands on a claw-foot base. The foot ends in an inclination joint which allows the microscope to be angled. The coarse focus functions by a sliding mechanism with a screwed clamp to control tension on main tube. The fine focus functions by adjusting the knurled thumbscrew located at the top of the pillar. The fixed circular stage is made from glass and has an iris diaphragm with 4 apertures. The diaphragm is part of the stage, rather than the usual design of being located underneath. The sub-stage mirror is concave-convex and is set in a gimbal which allows it to be angled to catch the light. The fitted mahogany case has its original bail and lock, however, there is no key with the instrument. The interior of the case has compartments to hold the accessories and dissembled microscope.
• 

  James Brown Microscope

  The brass compound microscope is signed on the body-tube "James Brown, 76 St Vincent St, Glasgow." The instrument was known as an "English Medical Microscope" and was made and retailed by J. Parkes & Son, Birmingham in 1882. Parkes supplied these microscopes to various medical schools and hospitals throughout Britain. The microscope is professionally polished and lacquered. The instrument stands on a horse-shoe weighted stand which is made of brass. The pillar ends in an inclination joint which allows the microscope to be angled. The sub-stage mirror is double-sided and sits in a gimbal. The square fixed stage has two stage clips which hold the specimens in place. Beneath the stage is a sub-stage diaphragm, which be be unscrewed and removed. Focusing functions by smooth sliding tube with extension and fine focus is operated by the thumbscrew at the back of the body tube. The chest-style case has compartments to hold the accessories and inside the lid is a chart of magnifying force. The case is secured by two brass swinging hooks and a lock.