. Electro-physiology . FIG. 268.—Schema for leading off the shock of Torjialn. ] .Ff7=frog-alaruin. (Du Bois-Reymoml.) contact, or some other excitation. In G-ym/notus, and according to du Bois-Beymond in Malapterurus also, the seat of stimulation is by no means immaterial. The barbels of the last fish seem to be peculiarly insensitive, since their stimulation never pro- duces a discharge. As regards requisite strength of stimulus, again, great differences are apparent. G-ymnotus at times reacts to the faintest impression, at others a discharge can only be provoked by determined "picking&
. Electro-physiology . FIG. 268.—Schema for leading off the shock of Torjialn. ] .Ff7=frog-alaruin. (Du Bois-Reymoml.) contact, or some other excitation. In G-ym/notus, and according to du Bois-Beymond in Malapterurus also, the seat of stimulation is by no means immaterial. The barbels of the last fish seem to be peculiarly insensitive, since their stimulation never pro- duces a discharge. As regards requisite strength of stimulus, again, great differences are apparent. G-ymnotus at times reacts to the faintest impression, at others a discharge can only be provoked by determined "picking" with a pointed body. In
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Keywords: ., bo, bookcentury1800, bookdecade1890, bookpublisherlondonmacmillan
