. A practical treatise on the use of the microscope, including the different methods of preparing and examining animal, vegetable, and mineral structures. Microscopes; Microscopy. 134 PEACTICAL TREATISE ON THE MICEOSCOPE. object which it is wished to obtain, the finger is to be quickly removed and as quickly replaced; the moment the finger is. Fig. 87. Fis. 86. taken off, the atmospheric pressure will force the water, and with it, in all probability, the desired objects up the tube; when the finger has been .replaced, the tube containing the fluid may be withdrawn from the phial, and as the tu
. A practical treatise on the use of the microscope, including the different methods of preparing and examining animal, vegetable, and mineral structures. Microscopes; Microscopy. 134 PEACTICAL TREATISE ON THE MICEOSCOPE. object which it is wished to obtain, the finger is to be quickly removed and as quickly replaced; the moment the finger is. Fig. 87. Fis. 86. taken off, the atmospheric pressure will force the water, and with it, in all probability, the desired objects up the tube; when the finger has been .replaced, the tube containing the fluid may be withdrawn from the phial, and as the tube is almost certain to contain much more fluid than is requisite, Mr. Varley adopts the following plan for getting rid of the excess. Being provided with some watch glasses and some pieces of plane glass, if the tube should contain more fluid than is neces-. 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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