. A practical treatise on the use of the microscope, including the different methods of preparing and examining animal, vegetable, and mineral structures. Microscopes; Microscopy. 296 MANIPULATION. this purpose, as all inequalities of surface may be ground down on the metal-plate. â " ^.^aaaaââ Oy â-â ». <i 0 I Fig. 198. When much deeper cells than these are required, we must employ the glass box, also the invention of Mr. Goadby. This consists of four pieces of thick plate-glass, abed, cemented together upon a bottom piece or slide by iheir edges, as seen in fig, 199. The edges are g
. A practical treatise on the use of the microscope, including the different methods of preparing and examining animal, vegetable, and mineral structures. Microscopes; Microscopy. 296 MANIPULATION. this purpose, as all inequalities of surface may be ground down on the metal-plate. â " ^.^aaaaââ Oy â-â ». <i 0 I Fig. 198. When much deeper cells than these are required, we must employ the glass box, also the invention of Mr. Goadby. This consists of four pieces of thick plate-glass, abed, cemented together upon a bottom piece or slide by iheir edges, as seen in fig, 199. The edges are ground flat, and the Fig. 199. c d, made rectangular; this form of cell is not so easily cemented as any of the preceding, and when the marine-glue is once melted upon the edges, the pieces should all be put together as speedily as possible, so that one part may not be made much hotter than the other, otherwise the glue, when over-heated, is apt to get thick and dry up. These cells or boxes may be made of any size to suit par- ticular preparations, but in proportion to the dimensions so ought the thickness of the plate-glass to increase; it must, however, be borne in mind, that the box should not be deeper. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Quekett, John, 1815-1861. London, H. Bailliere; [etc. , etc. ]
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Keywords: ., bookcentury1800, booksubjectmicroscopes, booksubjectmicroscopy
