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A practical treatise on the use of the microscope, including the different methods of preparing and examining animal, vegetable, and mineral structures (1848)

Quekett, John, 1815-1861 · London, H. Bailliere · leaf 180

An illustration from A practical treatise on the use of the microscope, including the different methods of preparing and examining animal, vegetable, and mineral structures, 1848, leaf 180 — is kept firmlyin its place by a thin circular ring of brasshaving three notches in its outer margin;these fit under three wedged-shaped piecesof metal on the edge of the disc, and pre-vent the chimney from falling off. Thecylinder of wax is not provided with a wick,Fig. 98. but a short piece of… … 140 PRACTICAL TREATISE ON THE MICROSCOPE. like process connected with the disc of metal carryingthe chimney, and by it both opaque and transparent objectscan be illuminated. For convenience of carriage, the tube, and the chimney c,can be removed, and the inner tube d having been pulled outof b, the…

Microscopy

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