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with the central nervous system, the nerves Fig. 79—Section of malapterurus, showing the electric organ surrounding the body between a and b. Fig. 80.—Electric cell from the middle region of the spinal cord of gymnotus, magnified 314 diameters. a, sheath of neuroglia, the peculiar connective tissue found in the central nervous organs; b, smaller nerve processes or fibres, forming a network with those of adjoining cells; c, chief nerve process passing into the axis-cylinder of a nerve-fibre. The nerve-fibre ends in an electric plate, as shown in Fig. 76, n. springing from special nerve-cells, so that it