. Behavior of the lower organisms. Animal behavior; Invertebrates. Fig. 58. —A, General appearance of Paramecia reacting to the electric current. After Verworn (1899). The current is passed by means of unpolarizable brush electrodes through a cell with porous walls. The infusoria have gathered at the cathodic side. B, Magnified view of a portion of the swarm as it moves toward the cathode. After Verworn. negative electrode. The swarm of infusoria all moving in the same direction present a most striking appearance (Fig. 58, B). If while all are swimming toward the cathode the direction of the c
. Behavior of the lower organisms. Animal behavior; Invertebrates. Fig. 58. —A, General appearance of Paramecia reacting to the electric current. After Verworn (1899). The current is passed by means of unpolarizable brush electrodes through a cell with porous walls. The infusoria have gathered at the cathodic side. B, Magnified view of a portion of the swarm as it moves toward the cathode. After Verworn. negative electrode. The swarm of infusoria all moving in the same direction present a most striking appearance (Fig. 58, B). If while all are swimming toward the cathode the direction of the current is reversed, the Paramecia at once turn around and swim toward the 80. 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 Jennings, H. S. (Herbert Spencer), 1868-1947. New York, The Columbia university press, The Macmillan company, agents; [etc. , etc. ]
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