With the aid of the oscillograph it is possible to show that a change in the innervation process of the skeletal muscle occurs after ramisection. This change concerns both the frequency and amplitude of the action current. So far we have found this change in affections of the pyramidal tract. The normal musculature does not show any difference after ramisection. The physiological explanation of this phenomenon we are not in a position to furnish. It must rest with later and more extensive studies, because of the complexity of factors which enter into the problem. But for clinical purposes, we believe that some confirmation has been found for the undoubted clinical improvement in function following ramisection in some cases.