Oriented Embedding of Single-Cell Organisms

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Abstract
The dexribed technique facilitates oriented embedding of individual cells in various media for both light and electron microscopy. A fixed Specimen is embedded in a small cube of 2% agar at 40 C and subsequently sealed in the desired orientation to a strip of black paper which then serves as a tab for transferring the specimen during dehydrating and embedding procedures. The beveled ends of the strip indicate the exact location of the specimen in the cube. This technique can be employed for the embedding media used in both light and electron microscopy. It ah permits photomicrographs of the whole specimen to be made which can be compared with photomicrographs of individual sections cut from the specimen in a selected plane.