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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 493

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 493 — object-glass; ee the milled heads of the stage actions (which aredouble, so that it matters not which side of the stage isnearest the arm a); ff the clips for securing the objects; gthe ring which revolves upon the foundation plate h. When,29* 452 APPENDIX. therefore, the object is fixed between… … Fig. 239. This contrivance Mr. Legg states is useful for examiningcrystals by polarized light, as well as lined objects, whetheropaque or transparent, when it is desirable to cast a shadow invarious directions without moving the illuminating apparatus. Instrument for Cutting Circular Covers of Thin…

Microscopy

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