. Modern microscopy; a handbook for beginners and students, combining. Microscopy. 144 Modern Microscopy cleared in clove oil and mounted in they are then C. Balsam. Heads of frogs, newts, and many other specimens may be infiltrated and embedded in gelatine, but they must all be stained in bulk before they are infiltrated, because the sections must not come in contact with water in any form; moreover, if the sections were stained the gelatine would be coloured as well as the tissues. The Rocking Microtome.—This machine is made by the Cambridge Scientific Instrument Company. It is only used. Fi
. Modern microscopy; a handbook for beginners and students, combining. Microscopy. 144 Modern Microscopy cleared in clove oil and mounted in they are then C. Balsam. Heads of frogs, newts, and many other specimens may be infiltrated and embedded in gelatine, but they must all be stained in bulk before they are infiltrated, because the sections must not come in contact with water in any form; moreover, if the sections were stained the gelatine would be coloured as well as the tissues. The Rocking Microtome.—This machine is made by the Cambridge Scientific Instrument Company. It is only used. Fig. 54.—Rooking Mioeotomb. for specimens infiltrated with paraffin, and it is automatic— that is to say, it can be ^t to cut sections of definite thick- ness, and every time the handle is pulled a section is cut, and the specimen is moved forward ready for another. Infiltrate the tissue with paraffin in the ordinary way in a pill-box, and when the paraffin has set, remove the box and trim the paraffin into a rectangular block. Take care to keep the edges quite parallel, so that they may adhere together as the sections are cut and form a riband. The Cambridge Instrument Company make an apparatus for embedding, called embedding L's. If these are used, per-. 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 Cross, M. I; Cole, Martin J. Chicago, W. T. Keener & Co.
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