. General physiology; an outline of the science of life. 270 GENERAL PHYSIOLOGY muscle-fibres (Fig. 123). Each of these columns is composed of transverse discs lying symmetrically upon one another (Fig. 124<,A); these are exactly homologous with the cross-striation of the muscle- fibre, but do not possess doubly refracting elements, and do not undergo changes of form during activity. Still greater is the correspondence in structure of the electric columns and cross- striated muscle in the half-electric or pseudo-electric fishes, , Raja davata (Fig. 124, B). A very interesting and obviou
. General physiology; an outline of the science of life. 270 GENERAL PHYSIOLOGY muscle-fibres (Fig. 123). Each of these columns is composed of transverse discs lying symmetrically upon one another (Fig. 124<,A); these are exactly homologous with the cross-striation of the muscle- fibre, but do not possess doubly refracting elements, and do not undergo changes of form during activity. Still greater is the correspondence in structure of the electric columns and cross- striated muscle in the half-electric or pseudo-electric fishes, , Raja davata (Fig. 124, B). A very interesting and obvious change. A. 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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