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 171
epresented by fig. 91, which is a very simple apparatus, and canbe applied very readily to any of theeye-pieces, the lowest of these is re-presented in section by fig. 91, theeye-glass and field-glass being bothshown to be planoconvex, with theirplane surfaces towards the eye. Im-mediately above… … Fig. 91 ACCESSORY INSTRUMENTS. 131 very delicate hand, like that of a watch, attached to it in thefocus of the eye-glass. The spindle is provided at its upperpart with a small handle, for the purpose of turning it and thehand just one-fourth part of a circle. When the indicator isnot required, the…
Microscopy
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