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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. Microscopes; Microscopy. THE COMPOUND MICROSCOPE. 79 of the instrument is efFected by rack and pinion, by which the triangular bar, H, and with it the arm, I, carrying the com-. Fig. 44. pound body, K L, are moved up or down, the rack being situated at the back of the triangular bar and the pinion con- nected with the large miUed head, E. The fine adjustment is made by turning the screw, S; this acts on the end of a lever contained in the ho

. A practical treatise on the use of the microscope, including the different methods of preparing and examining animal, vegetable, and mineral structures. Microscopes; Microscopy. THE COMPOUND MICROSCOPE. 79 of the instrument is efFected by rack and pinion, by which the triangular bar, H, and with it the arm, I, carrying the com-. Fig. 44. pound body, K L, are moved up or down, the rack being situated at the back of the triangular bar and the pinion con- nected with the large miUed head, E. The fine adjustment is made by turning the screw, S; this acts on the end of a lever contained in the ho Stock Photo

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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. Microscopes; Microscopy. THE COMPOUND MICROSCOPE. 79 of the instrument is efFected by rack and pinion, by which the triangular bar, H, and with it the arm, I, carrying the com-. Fig. 44. pound body, K L, are moved up or down, the rack being situated at the back of the triangular bar and the pinion con- nected with the large miUed head, E. The fine adjustment is made by turning the screw, S; this acts on the end of a lever contained in the hollow arm, I, by which the short tube, T, to. 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 work.. Quekett, John, 1815-1861. London, H. Bailliere; [etc. , etc. ]

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