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 235
Fig. 125. Canada balsam, to secure the plumbago from being wiped out.The slip of glass thus prepared is placed in a thin brass frame,as shown in fig. 125, so that it may slide freely; and is acted … Fig. 126. Fig. 127. on at one end by a pushing screw, and at the other by a slightspring. Slits are cut in the negative eye-piece on each side, asshown in figs. 126 and 127, so that the brass frame m maybepassed across the field in the focus of the eye-glass, the cellof which should have a longer…
Microscopy
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