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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 221

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 221 — called, which has been fullydescribed at pages 106-7-8. The illuminating body, whichmay be either a candle or an argand lamp, should be situatedabout a foot or eighteen inches distant from the stage of themicroscope, and the condensing lens, with its convex sidetowards the lamp, placed so near the… … Fig. 113. glass plate supporting the object «; DE the condensing lens;L the lamp; and rr rr diverging rays of light falling upon OPAQUE OBJECTS. 181 the lens D E; these rays, as also those shown by fig. 100, willbe brought into a focus F, when the lens is placed as thererepresented; but if the flat…

Microscopy

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