The multiform clinical manifestations which constitute the symptom grouping of so-called locomotor ataxia, are believed by most modern pathologists to be caused by an atrophy or degeneration of the sensory neurons, followed by sclerosis; although as suggested by Berger, Gowers, Oliver and others, this condition is probably preceded by a low grade inflammation.
The varying symptoms, besides those caused by disease of the spinal cord, consist of disturbances of the function of special cerebral nerves, sometimes of the cerebrum and occasionally of the cerebellum.
The medulla oblongata seems to be the connecting link between the spinal and the optic nerve affection. A broad generalization of the ocular symptomatology has recently been presented in a paper by Dr. Charles A. Oliver, as the outcome of a most painstaking series of investigations based upon the study of 100 cases.
The long-recognized pre-ataxic and ataxic divisions, it is thought, should give way to