We may say a word, in conclusion, of the relation of the processes whose generalmechanism we have here described to the electrical changes in the stimulatednerve. it is a noteworthy fact that the current of action which follows upon amomentary stimulation of the nerve reaches its conclusion, on the average, as earlyas 0.0006 to 0.0007 sec. after the application of the stimulus, and therefore fal Iscompletely within the period of nervous inexcitability. it would appear, , thatthe variation is connected with the inhibitory forces,with the passage of positiveinto negative molecular work. We must, however, have further , asregards the character of this connexion, before we can think of turning the electricalprocesses to theoretical account.