General physiology; an outline of the science of life . Fig. 232.—Galvanotaxis of Amceba proteus. At the left unstimulated and possessing numerouspseudopodia. At the right, above, after making the current; below, after reversal of thecurrent. The arrows indicate the direction in which the animal is creeping. A very fascinating spectacle results from exposing to the influenceof the current, at the same time, anodically galvanotactic Infusoria,, a flagellate form, such as Polytoma, and kathodically galvano-tactic forms, , a small ciliate genus, such as Halter ia orPleuronema. The previou
General physiology; an outline of the science of life . Fig. 232.—Galvanotaxis of Amceba proteus. At the left unstimulated and possessing numerouspseudopodia. At the right, above, after making the current; below, after reversal of thecurrent. The arrows indicate the direction in which the animal is creeping. A very fascinating spectacle results from exposing to the influenceof the current, at the same time, anodically galvanotactic Infusoria,, a flagellate form, such as Polytoma, and kathodically galvano-tactic forms, , a small ciliate genus, such as Halter ia orPleuronema. The previously inextricable intermingling of the. 4- Fig. 233.—Galvanotaxis of Amoeba diffluens. A, Unstimulated, creeping; B, after making theconstant current. The arrow indicates the direction of the motion. two forms ceases at once after the making of the current. TheCtliata collect at the kathode, the Flagellata at the anode. Aftera short time the liquid is entirely deserted in the middle, and thetwo assemblages are sharply separated from one another. If now STIMULI AND THEIR ACTIONS 459 the current be reversed, so that the previous anode becomes thekathode, and vice versa, the two crowds of Infusoria rush towardone another like two hostile armies, cross and again assemble atthe opposite poles. There are few physiological experiments that
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Keywords: ., bookcentury1800, bookdecade1890, bookidgen, booksubjectphysiology
