. A practical treatise on the use of the microscope, including the different methods of preparing and examining animal, vegetable, and mineral structures. Microscopes; Microscopy. 148 PEACTICAi TBEATISE ON THE server may use either his right or his left eye. The back of the recesses for the nose must be made of black silk or stuiF, but not closed at the bottom to confine the breath, which would make the eye-glass dim. Goniometer. — A very valuable instru- ment for measuring the angles of minute crystals, known as the goniometer, the invention of Dr. Leeson, is capable of being app


. A practical treatise on the use of the microscope, including the different methods of preparing and examining animal, vegetable, and mineral structures. Microscopes; Microscopy. 148 PEACTICAi TBEATISE ON THE server may use either his right or his left eye. The back of the recesses for the nose must be made of black silk or stuiF, but not closed at the bottom to confine the breath, which would make the eye-glass dim. Goniometer. — A very valuable instru- ment for measuring the angles of minute crystals, known as the goniometer, the invention of Dr. Leeson, is capable of being applied to the microscope, and is furnished by Messrs. Smith and Beck for this purpose. As some little time is required before an observer can get into the way of using it with faciUty, it has been deemed best to give a detailed description of it in a separate chapter. The various modes of employing the knives, forceps, dis- secting and all other instruments supplied with the best micro- scopes, will be considered in full in other parts of the work. Fig. 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