Electro-physiology (1896-98) Electro-physiology electrophysiolog01bied Year: 1896-98 FIG. 53. FIGS. 51-53.—Muscle of Frog, indirect excitation with induction currents of increasing strength at uniform frequency (10-12 per sec.) (Grtitzner.) tively high coil frequency. With the constant current, too, it may often be observed that with repeated closure at fairly short intervals, a current ineffective in itself will gradually produce effectual excitation (Engelmann). This property of summation of stimuli characterises all irritable protoplasm (ciliated cells, nerve cells, vegetable protoplasm

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Electro-physiology (1896-98) Electro-physiology electrophysiolog01bied Year: 1896-98 FIG. 53. FIGS. 51-53.—Muscle of Frog, indirect excitation with induction currents of increasing strength at uniform frequency (10-12 per sec.) (Grtitzner.) tively high coil frequency. With the constant current, too, it may often be observed that with repeated closure at fairly short intervals, a current ineffective in itself will gradually produce effectual excitation (Engelmann). This property of summation of stimuli characterises all irritable protoplasm (ciliated cells, nerve cells, vegetable protoplasm, Dioncea, etc.) in a more or

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