. General physiology; an outline of the science of life. ELEMENTARY VITAL PHENOMENA 235 intestinal epithelium-cells (Fig. 45); and, finally, various kinds of plant-cells (Fig. 24, a, and Fig. 35). The movement of Amceba can serve as a type (Fig. 95). This organism is the lowest of all living things, and its formless body holds within itself the whole secret of life. Taken with a pipette in a drop of water from the bottom of a pond and brought under the microscope upon a slide, the amoeba-cell appears as a small grey semi- transparent droplet of a more or less pronounced spherical form; in the
. General physiology; an outline of the science of life. ELEMENTARY VITAL PHENOMENA 235 intestinal epithelium-cells (Fig. 45); and, finally, various kinds of plant-cells (Fig. 24, a, and Fig. 35). The movement of Amceba can serve as a type (Fig. 95). This organism is the lowest of all living things, and its formless body holds within itself the whole secret of life. Taken with a pipette in a drop of water from the bottom of a pond and brought under the microscope upon a slide, the amoeba-cell appears as a small grey semi- transparent droplet of a more or less pronounced spherical form; in the central portion lie the nucleus and usually a contractile vacuole, surrounded by a more or less granular endoplasm, while the peripheral layer consists of a more hyaline exoplasm. If this drop of living substance be observed for some time, it is. 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 Verworn, Max, 1863-1921; Lee, Frederic S. (Frederic Schiller), 1859-1939. London, Macmillan and co. , limited; New York, The Macmillan company
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